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CISA flags actively exploited ‘Copy Fail’ Linux kernel flaw enabling root takeover across major distros — unpatched systems may remain vulnerable to attack

… Cybersecurity and Infrastructure Security Agency CISA added a newly disclosed Linux vulnerability, dubbed “Copy Fail,” to its Known Exploited Vulnerabilities catalog on May 1st, warning that the flaw, tracked as CVE-2026-31431, is already being used in active attacks and urging rapid patching acros… …

May 4, 2026 · Etiido Uko

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Another major Linux security flaw revealed — 'Dirty Frag' allows root on all major distros, with no patch or fix available yet

Researcher Hyunwoo Kim discloses Dirty Frag , a nine‑year‑old kernel flaw enabling root privilege escalation across major Linux distros The exploit chains two page‑cache write bugs, works reliably without race conditions, and currently has no CVE or patch Mitigation requires disabling vulnerable ke… …

May 8, 2026 · Sead Fadilpašić
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