Key Findings CISA added CVE-2026-31431 to its Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild The Linux kernel flaw allows unprivileged local users to gain root-level access through a 732-byte Python exploit Nine-year-old vulnerability resulted from three separate kernel changes made in 2011, 2015, and 2017 that individually seemed harmless Patches available in Linux kernel versions 6.18.22, 6.19.12, and 7.0 Federal agencies must apply fixe
