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CVE-2026-55999

xorg-server

Description

Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a heap buffer overflow via SetFont due to missing glyph boundary checks.

CVSS 8.5EPSS 0.269%Risque 0.87
Voir la source
Publication
2026-07-08 09:16:29
Versions concernées
<21.2.24
Type
Système d’exploitation
Vecteur
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H