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CVE-2026-34001

X.Org X server

Description

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.

CVSS 7.8EPSS 0.264%Risque 0.8
Voir la source
Publication
2026-04-23 16:16:24
Versions concernées
unknown
Type
Core software
Vecteur
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H