U.S. CISA adds a flaw in Linux Kernel to its Known Exploited Vulnerabilities catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Linux Kernel to its Known Exploited Vulnerabilities catalog The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in the Linux Kernel, tracked as CVE-2026-31431 (CVSS score of 7.8), to its Known Exploited Vulnerabilities (KEV) catalog. Recently, Xint Code researchers warned of a serious Linux […]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in the Linux Kernel, tracked as CVE-2026-31431 (CVSS score of 7.8), to its Known Exploited Vulnerabilities (KEV) catalog.
Recently, Xint Code researchers warned of a serious Linux flaw, tracked as CVE-2026-31431, dubbed Copy Fail. It lets any local, unprivileged user write four controlled bytes into the page cache of any readable file, enabling escalation to root on major distributions.
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