ZDI-CAN-28679 MEDIUM 6.1 Upcoming Feb 17, 2026

X.Org

X.Org is the widely-used open-source display server that manages graphical output on Linux and Unix systems. This medium-severity vulnerability requires local access with standard user privileges to trigger, potentially exposing sensitive information while causing minor system availability issues. Security teams should monitor for patches from X.Org and prioritize testing in environments where untrusted local users have system access.

Advisory Details
Researcher Jan-Niklas Sohn
Reported February 17, 2026
Deadline June 17, 2026 62d
CVSS Vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

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