CISA flags actively exploited ‘Copy Fail’ Linux kernel flaw enabling root takeover across major distros — unpatched systems may remain vulnerable to attack
Tom's Hardware: For The Hardcore PC Enthusiast [Unofficial]
May 4, 2026
CISA warns of the actively exploited “Copy Fail” Linux flaw (CVE-2026-31431), enabling root access, with a public exploit released before patches were ready.
Discussion in the ATmosphere