CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-39964 Linux Kernel Race Condition Vulnerability CVE-2026-53266 Linux Kernel Out-of-Bounds Write Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.
CISA Adds Two Known Exploited Vulnerabilities to Catalog
About this summary. This is a short, independently written summary of an article first published by CISA. Cyber Security News did not report or verify the underlying story. Read the original: https://www.cisa.gov/news-events/alerts/2026/09/18/cisa-adds-two-known-exploited-vulnerabilities-catalog
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