View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 7.3
• ATTENTION: Low attack complexity
• Vendor: Delta Electronics
• Equipment: CNCSoft
• Vulnerabilities: Out-of-bounds Write

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to execute code within the context of the current process.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Delta Electronics reports the following versions of CNCSoft, a human-machine interface, are affected:

• CNCSoft: v1.01.34 and prior

3.2 VULNERABILITY OVERVIEW

3.2.1 OUT-OF-BOUNDS WRITE CWE-787

Delta Electronics CNCSoft does not properly validate user-supplied files. If a user opens a maliciously crafted file, an attacker can leverage this vulnerability to execute code within the context of the current process.

CVE-2025-47724 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.7 has been calculated; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-47724. A base score of 7.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).

3.2.2 OUT-OF-BOUNDS WRITE CWE-787

Delta Electronics CNCSoft does not properly validate user-supplied files. If a user opens a maliciously crafted file, an attacker can leverage this vulnerability to execute code within the context of the current process.

CVE-2025-47725 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.7 has been calculated; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-47725. A base score of 7.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).

3.2.3 OUT-OF-BOUNDS WRITE CWE-787

Delta Electronics CNCSoft does not properly validate user-supplied files. If a user opens a maliciously crafted file, an attacker can leverage this vulnerability to execute code within the context of the current process.

CVE-2025-47726 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.7 has been calculated; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-47726. A base score of 7.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).

3.2.4 OUT-OF-BOUNDS WRITE CWE-787

Delta Electronics CNCSoft does not properly validate user-supplied files. If a user opens a maliciously crafted file, an attacker can leverage this vulnerability to execute code within the context of the current process.

CVE-2025-47727 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.7 has been calculated; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-47727. A base score of 7.3 has been calculated; the CVSS vector string is (CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Energy
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Taiwan

3.4 RESEARCHER

Natnael Samson working with Trend Micro Zero Day Initiative reported these vulnerabilities to CISA.

4. MITIGATIONS

Delta Electronics does not plan to address these vulnerabilities because the A-series CNC products supported by CNCSoft have been discontinued. CNCSoft will be removed from the Delta Download Center. Delta recommends users migrate to newer Delta CNC products along with their corresponding software as soon as possible.

Delta Electronics offers the following general recommendations:

• Do not click on untrusted Internet links or open unsolicited email attachments.
• Avoid exposing control systems and equipment to the Internet.
• Place systems and devices behind a firewall and isolate them from the business network.
• When remote access is required, use a secure access method, such as a virtual private network (VPN).

For any product-related support inquiries, contact Delta through the company’s portal page to request any information or materials you may need.

Reference Delta’s product cybersecurity advisory for more information about these vulnerabilities.

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. These vulnerabilities are not exploitable remotely.

5. UPDATE HISTORY

• June 24, 2025: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 8.4
• ATTENTION: Low attack complexity
• Vendor: LS Electric
• Equipment: GMWin 4
• Vulnerabilities: Out-of-Bounds Write, Out-of-Bounds Read, Heap-based Buffer Overflow

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to disclose information or execute arbitrary code.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of LS Electric GMWin 4, a programming software tool, are affected:

• GMWin 4: Version 4.18

3.2 VULNERABILITY OVERVIEW

3.2.1 HEAP-BASED BUFFER OVERFLOW CWE-122

A Heap-based Buffer Overflow vulnerability exists within the parsing of PRJ files. The issues result from the lack of proper validation of user-supplied data, which can result in different memory corruption issues within the application, such as reading and writing past the end of allocated data structures.

CVE-2025-49850 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-49850. A base score of 8.4 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.2 OUT-OF-BOUNDS READ CWE-125

An Out-of-bounds Read vulnerability exists within the parsing of PRJ files. The issues result from the lack of proper validation of user-supplied data, which can result in different memory corruption issues within the application, such as reading and writing past the end of allocated data structures.

CVE-2025-49849 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-49849. A base score of 8.4 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.3 OUT-OF-BOUNDS WRITE CWE-787

An Out-of-bounds Write vulnerability exists within the parsing of PRJ files. The issues result from the lack of proper validation of user-supplied data, which can result in different memory corruption issues within the application, such as reading and writing past the end of allocated data structures.

CVE-2025-49848 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-49848. A base score of 8.4 has been calculated; the CVSS vector string is (AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: South Korea

3.4 RESEARCHER

Michael Heinzl reported these vulnerabilities to CISA.

4. MITIGATIONS

LS Electric GMWin 4 has been discontinued and is no longer available for service. LS electric recommends users to use the XGT series as a replacement.

For more information, contact LS Electric.

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. These vulnerabilities are not exploitable remotely.

5. UPDATE HISTORY

• June 17, 2025: Initial Publication

Summary

The Cybersecurity and Infrastructure Security Agency (CISA) is releasing this advisory in response to ransomware actors leveraging unpatched instances of a vulnerability in SimpleHelp Remote Monitoring and Management (RMM) to compromise customers of a utility billing software provider. This incident reflects a broader pattern of ransomware actors targeting organizations through unpatched versions of SimpleHelp RMM since January 2025.

SimpleHelp versions 5.5.7 and earlier contain several vulnerabilities, including CVE-2024-57727—a path traversal vulnerability.¹ Ransomware actors likely leveraged CVE-2024-57727 to access downstream customers’ unpatched SimpleHelp RMM for disruption of services in double extortion compromises.¹ 

CISA added CVE-2024-57727 to its Known Exploited Vulnerabilities (KEV) Catalog on Feb. 13, 2025.

CISA urges software vendors, downstream customers, and end users to immediately implement the Mitigations listed in this advisory based on confirmed compromise or risk of compromise.

Download the PDF version of this report:

Mitigations

CISA recommends organizations implement the mitigations below to respond to emerging ransomware activity exploiting SimpleHelp software. These mitigations align with the Cross-Sector Cybersecurity Performance Goals (CPGs) developed by CISA and the National Institute of Standards and Technology (NIST). The CPGs provide a minimum set of practices and protections that CISA and NIST recommend all organizations implement. CISA and NIST based the CPGs on existing cybersecurity frameworks and guidance to protect against the most common and impactful threats, tactics, techniques, and procedures. Visit CISA’s CPGs webpage for more information on the CPGs, including additional recommended baseline protections. These mitigations apply to all critical infrastructure organizations.

Vulnerable Third-Party Vendors

If SimpleHelp is embedded or bundled in vendor-owned software or if a third-party service provider leverages SimpleHelp on a downstream customer’s network, then identify the SimpleHelp server version at the top of the file <file_path>/SimpleHelp/configuration/serverconfig.xml. If version 5.5.7 or prior is found or has been used since January 2025, third-party vendors should:

1. Isolate the SimpleHelp server instance from the internet or stop the server process.
2. Upgrade immediately to the latest SimpleHelp version in accordance with SimpleHelp’s security vulnerability advisory.²
3. Contact your downstream customers to direct them to take actions to secure their endpoints and undertake threat hunting actions on their network.

Vulnerable Downstream Customers and End Users

Determine if the system is running an unpatched version of SimpleHelp RMM either directly or embedded in third-party software.

SimpleHelp Endpoints

Determine if an endpoint is running the remote access (RAS) service by checking the following paths depending on the specific environment:

• Windows: %APPDATA%JWrapper-Remote Access
• Linux: /opt/JWrapper-Remote Access
• MacOs: /Library/Application Support/JWrapper-Remote Access

If RAS installation is present and running, open the serviceconfig.xml file in <file_path>/JWrapper-Remote Access/JWAppsSharedConfig/ to determine if the registered service is vulnerable. The lines starting with <ConnectTo indicate the server addresses where the service is registered.

SimpleHelp Server

Determine the version of any SimpleHelp server by performing an HTTP query against it. Add /allversions (e.g., https://simple-help.com/allversions) to query the URL for the version page. This page will list the running version.

If an unpatched SimpleHelp version 5.5.7 or earlier is confirmed on a system, organizations should conduct threat hunting actions for evidence of compromise and continuously monitor for unusual inbound and outbound traffic from the SimpleHelp server. Note: This is not an exhaustive list of indicators of compromise.

1.  Refer to SimpleHelp’s guidance to determine compromise and next steps.³
2. Isolate the SimpleHelp server instance from the internet or stop the server process.
3. Search for any suspicious or anomalous executables with three alphabetic letter filenames (e.g., aaa.exe, bbb.exe, etc.) with a creation time after January 2025. Additionally, perform host and network vulnerability security scans via reputable scanning services to verify malware is not on the system.
4. Even if there is no evidence of compromise, users should immediately upgrade to the latest SimpleHelp version in accordance with SimpleHelp’s security vulnerabilities advisory.⁴

If your organization is unable to immediately identify and patch vulnerable versions of SimpleHelp, apply appropriate workarounds. In this circumstance, CISA recommends using other vendor-provided mitigations when available. These non-patching workarounds should not be considered permanent fixes and organizations should apply the appropriate patch as soon as it is made available.

Encrypted Downstream Customers and End Users

If a system has been encrypted by ransomware:

1. Disconnect the affected system from the internet.
2. Use clean installation media (e.g., a bootable USD drive or DVD) to reinstall the operating system. Ensure the installation media is free from malware.
3. Wipe the system and only restore data from a clean backup. Ensure data files are obtained from a protected environment to avoid reintroducing ransomware to the system.

CISA urges you to promptly report ransomware incidents to a local FBI Field Office, FBI’s Internet Crime Compliant Center (IC3), and CISA via CISA’s 24/7 Operations Center (report@cisa.gov or 888-282-0870).

Proactive Mitigations to Reduce Risk

To reduce opportunities for intrusion and to strengthen response to ransomware activity, CISA recommends customers of vendors and managed service providers (MSPs) implement the following best practices:

• Maintain a robust asset inventory and hardware list [CPG 1.A].
• Maintain a clean, offline backup of the system to ensure encryption will not occur once reverted. Conduct a daily system backup on a separate, offline device, such as a flash drive or external hard drive. Remove the device from the computer after backup is complete [CPG 2.R].
• Do not expose remote services such as Remote Desktop Protocol (RDP) on the web. If these services must be exposed, apply appropriate compensating controls to prevent common forms of abuse and exploitation. Disable unnecessary OS applications and network protocols on internet-facing assets [CPG 2.W].
• Conduct a risk analysis for RMM software on the network. If RMM is required, ask third-party vendors what security controls are in place.
• Establish and maintain open communication channels with third-party vendors to stay informed about their patch management process.
• For software vendors, consider integrating a Software Bill of Materials (SBOM) into products to reduce the amount of time for vulnerability remediation.
  • An SBOM is a formal record of components used to build software. SBOMs enhance supply chain risk management by quickly identifying and avoiding known vulnerabilities, identifying security requirements, and managing mitigations for vulnerabilities. For more information, see CISA’s SBOM page.

Resources

• Health-ISAC:Threat Bulletin: SimpleHelp RMM Software Leveraged in Exploitation Attempt to Breach Networks
• Arctic Wolf: Arctic Wolf Observes Campaign Exploiting SimpleHelp RMM Software for Initial Access
• CISA: #StopRansomware Guide

Reporting

Your organization has no obligation to respond or provide information back to FBI in response to this advisory. If, after reviewing the information provided, your organization decides to provide information to FBI, reporting must be consistent with applicable state and federal laws.

FBI is interested in any information that can be shared, to include boundary logs showing communication to and from foreign IP addresses, a sample ransom note, communications with threat actors, Bitcoin wallet information, decryptor files, and/or a benign sample of an encrypted file.

Additional details of interest include a targeted company point of contact, status and scope of infection, estimated loss, operational impact, transaction IDs, date of infection, date detected, initial attack vector, and host- and network-based indicators.

CISA and FBI do not encourage paying ransom as payment does not guarantee victim files will be recovered. Furthermore, payment may also embolden adversaries to target additional organizations, encourage other criminal actors to engage in the distribution of ransomware, and/or fund illicit activities. Regardless of whether you or your organization have decided to pay the ransom, FBI and CISA urge you to promptly report ransomware incidents to FBI’s Internet Crime Complain Center (IC3), a local FBI Field Office, or CISA via the agency’s Incident Reporting System or its 24/7 Operations Center (report@cisa.gov) or by calling 1-844-Say-CISA (1-844-729-2472).

SimpleHelp users or vendors can contact support@simple-help.com for assistance with queries or concerns.

Disclaimer

The information in this report is being provided “as is” for informational purposes only. CISA does not endorse any commercial entity, product, company, or service, including any entities, products, or services linked within this document. Any reference to specific commercial entities, products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply endorsement, recommendation, or favor by CISA.

Version History

June 12, 2025: Initial version.

Notes

1. Anthony Bradshaw, et. al., “DragonForce Actors Target SimpleHelp Vulnerabilities to Attack MSP, Customers,” Sophos News, May 27, 2025, https://news.sophos.com/en-us/2025/05/27/dragonforce-actors-target-simplehelp-vulnerabilities-to-attack-msp-customers/.
2. For instructions for upgrading to the latest version of SimpleHelp, see SimpleHelp’s security vulnerability advisory.
3. To determine possibility of compromise and next steps, see SimpleHelp’s guidance.
4. For instructions for upgrading to the latest version of SimpleHelp, see SimpleHelp’s security vulnerability advisory.

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens’ ProductCERT Security Advisories (CERT Services | Services | Siemens Global).

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 7.3
• ATTENTION: Low attack complexity
• Vendor: Siemens
• Equipment: Tecnomatix Plant Simulation
• Vulnerability: Out-of-bounds Read

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to execute code in the context of the current process.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Siemens reports that the following products are affected:

• Tecnomatix Plant Simulation V2404: All versions prior to V2404.0013

3.2 VULNERABILITY OVERVIEW

3.2.1 OUT-OF-BOUNDS READ CWE-125

The affected applications contain an out-of-bounds read past the end of an allocated structure while parsing specially crafted WRL files. This could allow an attacker to execute code in the context of the current process.

CVE-2025-32454 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-32454. A base score of 7.3 has been calculated; the CVSS vector string is (AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Germany

3.4 RESEARCHER

Michael Heinzl reported this vulnerability to Siemens. Siemens reported this vulnerability to CISA.

4. MITIGATIONS

Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

• Tecnomatix Plant Simulation V2404: Do not open untrusted WRL files in affected applications
• Tecnomatix Plant Simulation V2404: Update to V2404.0013 or later version

As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens’ operational guidelines for industrial security and following recommendations in the product manuals.

Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage

For more information see the associated Siemens security advisory SSA-486186 in HTML and CSAF.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely.

5. UPDATE HISTORY

• June 12, 2025: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 4.5
• ATTENTION: Exploitable remotely
• Vendor: AVEVA
• Equipment: PI Web API
• Vulnerability: Cross-site Scripting

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to disable content security policy protections.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of AVEVA PI Web API are affected:

• PI Web API: Versions 2023 SP1 and prior

3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION (‘CROSS-SITE SCRIPTING’) CWE-79

A cross-site scripting vulnerability exists in PI Web API version 2023 SP1 and prior that, if exploited, could allow an authenticated attacker (with privileges to create/update annotations or upload media files) to persist arbitrary JavaScript code that will be executed by users who were socially engineered to disable content security policy protections while rendering annotation attachments from within a web browser.

CVE-2025-2745 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N).

A CVSS v4 score has also been calculated for CVE-2025-2745. A base score of 4.5 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: United Kingdom

3.4 RESEARCHER

AVEVA Ethical Disclosure reported this vulnerability to CISA.

4. MITIGATIONS

AVEVA recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation. Users of affected product versions should apply security updates to mitigate the risk of exploit.

From OSISoft Customer Portal, search for “PI Web API” and select version 2023 SP1 Patch 1 or higher.

AVEVA further recommends users follow general defensive measures:

• Review and update the file extensions allowlist for annotation attachments to remove potentially vulnerable of undesired file types (ex: svg, pdf, …).
• Consider implementing IT policies that would prevent users from subverting/disabling content security policy browser protections.
• Inform PI Web API users that annotation attachments should be retrieved through direct REST requests to PI Web API rather than rendering them in the browser interface.
• Audit assigned privileges to ensure that only trusted users are given “Annotate” access rights.

For additional information please refer to AVEVA-2025-003.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability has a high attack complexity.

5. UPDATE HISTORY

• June 12, 2025: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 8.2
• ATTENTION: Exploitable remotely
• Vendor: Hitachi Energy
• Equipment: Relion 670, 650, SAM600-IO Series
• Vulnerability: Observable Discrepancy

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to decrypt application data in transit.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Hitachi Energy reports that the following products are affected:

• Relion 670: Version 2.2.0
• Relion 670: Version 2.2.1
• Relion 650: Version 2.2.0
• Relion 650: Version 2.2.1
• Relion 670: Versions 2.2.2.0 through 2.2.2.5
• Relion 670: Versions 2.2.3.0 through 2.2.3.6
• Relion 670: Versions 2.2.4.0 through 2.2.4.3
• Relion 650: Versions 2.2.4.0 through 2.2.4.3
• Relion 670: Versions 2.2.5.0 through 2.2.5.5
• Relion 650: Versions 2.2.5.0 through 2.2.5.5
• SAM600-IO: Version 2.2.1
• SAM600-IO: Versions from 2.2.5.0 up to but not including, 2.2.5.5

3.2 VULNERABILITY OVERVIEW

3.2.1 OBSERVABLE DISCREPANCY CWE-203

A timing-based side channel exists in the OpenSSL RSA decryption implementation, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-style attack. To achieve a successful decryption, an attacker would have to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.

CVE-2022-4304 has been assigned to this vulnerability. A CVSS v3 base score of 5.9 has been assigned; the CVSS vector string is (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for CVE-2022-4304. A base score of 8.2 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Energy
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Japan

3.4 RESEARCHER

Hitachi Energy reported this vulnerability to CISA.

4. MITIGATIONS

Hitachi Energy has identified the following specific workarounds and mitigations users can apply to reduce risk:

• Relion 670 series version 2.2.0: Apply general mitigation factors.
• Relion 670 series version 2.2.1: Apply general mitigation factors.
• Relion 650 series version 2.2.0: Apply general mitigation factors.
• Relion 650 series version 2.2.1: Apply general mitigation factors.
• Relion 670 series version 2.2.2 through 2.2.2.5: Update to version 2.2.2.6 or latest.
• Relion 670 series version 2.2.3 through 2.2.3.6: Update to version 2.2.3.7 or latest.
• Relion 670 series version 2.2.4 through 2.2.4.3: Update to version 2.2.4.4 or latest.
• Relion 650 series version 2.2.4 through 2.2.4.3: Update to version 2.2.4.4 or latest.
• Relion 670 series version 2.2.5 through 2.2.5.5: Update to version 2.2.5.6 or latest.
• Relion 650 series version 2.2.5 through 2.2.5.5: Update to version 2.2.5.6 or latest.
• SAM600-IO series version 2.2.1: Apply general mitigation factors.
• SAM600-IO series version 2.2.5 through 2.2.5.5: Update to version 2.2.5.6 or latest.

For more information, see the associated Hitachi Energy PSIRT Security Advisory 8DBD000157.

Hitachi Energy recommends the following general mitigation factors and security practices:

• Configure firewalls to protect process control networks from attacks originating from outside the network.
• Physically protect process control systems from direct access by unauthorized personnel.
• Avoid directly connecting control systems to the internet.
• Separate process control networks from other networks via a firewall system with minimal exposed ports.
• Users should not use process control systems for internet surfing, instant messaging, or email.
• Portable computers and removable storage media should be carefully scanned for viruses before connecting to a control system.
• Enforce proper password policies and processes.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

5. UPDATE HISTORY

• June 10, 2025: Initial Republication of Hitachi Energy’s 8DBD000157.

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 8.8
• ATTENTION: Exploitable remotely/Low attack complexity
• Vendor: SinoTrack
• Equipment: All Known SinoTrack Devices
• Vulnerabilities: Weak Authentication, Observable Response Discrepency

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to access device profiles without authorization through the common web management interface. Access to the device profile may allow an attacker to perform some remote functions on connected vehicles such as tracking the vehicle location and disconnecting power to the fuel pump where supported.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following SinoTrack products are affected:

• SinoTrack IOT PC Platform: All versions

3.2 VULNERABILITY OVERVIEW

3.2.1 WEAK AUTHENTICATION CWE-1390

A username and password are required to authenticate to the central SinoTrack device management interface. The username for all devices is an identifier printed on the receiver. The default password is well-known and common to all devices. Modification of the default password is not enforced during device setup. A malicious actor can retrieve device identifiers with either physical access or by capturing identifiers from pictures of the devices posted on publicly accessible websites such as eBay.

CVE-2025-5484 has been assigned to this vulnerability. A CVSS v3 base score of 8.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L).

A CVSS v4 score has also been calculated for CVE-2025-5484. A base score of 7.6 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:L).

3.2.2 OBSERVABLE RESPONSE DISCREPENCY CWE-204

User names used to access the web management interface are limited to the device identifier, which is a numerical identifier no more than 10 digits. A malicious actor can enumerate potential targets by incrementing or decrementing from known identifiers or through enumerating random digit sequences.

CVE-2025-5485 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).

A CVSS v4 score has also been calculated for CVE-2025-5485. A base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:L).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Communications
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: China

3.4 RESEARCHER

Independent researcher Raúl Ignacio Cruz Jiménez reported these vulnerabilities to CISA.

4. MITIGATIONS

SinoTrack did not respond to CISA’s request for coordination. Please contact SinoTrack for more information.

CISA recommends that device users take defensive measures to minimize the risk of exploitation of these vulnerabilities, including:

• Change the default password to a unique, complex password as soon as is practical in the management interface available at https://sinotrack.com/.
• Conceal the device identifier. If the sticker is visible on publicly accessible photographs, consider deleting or replacing the pictures to protect the identifier.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

5. UPDATE HISTORY

• June 10, 2025: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 9.3
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Schneider Electric
• Equipment: Wiser AvatarOn 6K Freelocate, Wiser Cuadro H 5P Socket
• Vulnerability: Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’)

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to inject code or bypass authentication.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following Schneider Electric products are affected:

• Wiser AvatarOn 6K Freelocate: All versions
• Wiser Cuadro H 5P Socket: All versions

3.2 VULNERABILITY OVERVIEW

3.2.1 Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) CWE-120

Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’), Out-of-bounds Write, Download of Code Without Integrity Check vulnerability in Silicon Labs Gecko Bootloader on ARM (Firmware Update File Parser modules) allows Code Injection, Authentication Bypass. This issue affects “Standalone” and “Application” versions of Gecko Bootloader.

CVE-2023-4041 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2023-4041. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Energy
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: France

3.4 RESEARCHER

Schneider Electric reported this vulnerability to CISA.

4. MITIGATIONS

The Wiser AvatarOn 6K Freelocate and Wiser Cuadro H 5P Socket products have reached their end of life and are no longer supported. Users should immediately either disable the firmware update in the Zigbee Trust Center or remove the products from service to reduce the risk of exploitation.

To stay informed about all updates, including details on affected products and remediation plans, subscribe to Schneider Electric’s security notification service here: https://www.se.com/en/work/support/cybersecurity/securitynotifications.jsp

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

• Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the Internet.
• Locate control system networks and remote devices behind firewalls and isolating them from business networks.
• When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.

5. UPDATE HISTORY

• June 3, 2025: Initial Republication of Schneider Electric SEVD-2025-133-02

CISA, the Federal Bureau of Investigation (FBI), and the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC) have issued an updated advisory on Play ransomware, also known as Playcrypt. This advisory highlights new tactics, techniques, and procedures used by the Play ransomware group and provides updated indicators of compromise (IOCs) to enhance threat detection.

Since June 2022, Playcrypt has targeted diverse businesses and critical infrastructure across North America, South America, and Europe, becoming one of the most active ransomware groups in 2024. The FBI has identified approximately 900 entities allegedly exploited by these ransomware actors as of May 2025.

Recommended mitigations include:

• Implementing multifactor authentication;
• Maintaining offline data backups;
• Developing and testing a recovery plan; and
• Keeping all operating systems, software, and firmware updated.

Stay vigilant and take proactive measures to protect your organization.