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cve recordhigh

CVE-2026-55999

x.org · x server

Published
CVSS8.5
Severityhigh
WeaknessCWE-122
ExploitedNot in CISA KEV

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

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.

References

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