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#6 SecurityWeek general June 01, 2026 at 11:19 UTC

19-Year-Old Linux Kernel Vulnerability Exposes Systems to Root Access

By Ionut Arghire

AI Summary

A 19-year-old privilege escalation vulnerability in the Linux kernel's CIFS (Common Internet File System) implementation, dubbed 'CIFSwitch,' now has public proof-of-concept exploit code released, allowing low-privileged local users to escalate to root on vulnerable systems. The long patch window and PoC availability significantly increase exploitation risk for unpatched Linux servers and workstations. Administrators should audit kernel versions and apply available patches promptly.

Read full article → https://www.securityweek.com/19-year-old-linux-ker…

Relevance score: 83.0/100

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