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#1 BleepingComputer general May 04, 2026 at 11:28 UTC

CISA says ‘Copy Fail’ flaw now exploited to root Linux systems

By Sergiu Gatlan

AI Summary

CISA added the "Copy Fail" Linux vulnerability (CVE-2026-31431, CVSS 7.8) to its KEV catalog after threat actors began exploiting it for local privilege escalation on Linux systems. The flaw affects mainstream Linux distributions built since 2017 and allows attackers to gain root access, with exploitation beginning just one day after researchers disclosed a proof-of-concept exploit.

Read full article → https://www.bleepingcomputer.com/news/security/cis…

Relevance score: 95.0/100

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