Reported Supply Chain Compromise Affecting XZ Utils Data Compression Library, CVE-2024-3094

CISA and the open source community are responding to reports of malicious code being embedded in XZ Utils versions 5.6.0 and 5.6.1. This activity was assigned CVE-2024-3094. XZ Utils is data compression software and may be present in Linux distributions. The malicious code may allow unauthorized access to affected systems. 

CISA recommends developers and users to downgrade XZ Utils to an uncompromised version—such as XZ Utils 5.4.6 Stable—hunt for any malicious activity and report any positive findings to CISA. 

See the following advisory for more information: 

Cisco Releases Security Updates for Multiple Products

Cisco released security updates to address vulnerabilities in Cisco IOS, IOS XE, and AP software. A cyber threat actor could exploit some of these vulnerabilities to cause a denial-of-service.

CISA encourages users and administrators to review the following advisories and apply the necessary updates: