CVE Intelligence

X.org Xorg-server vulnerabilities

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Published CVEs affecting X.org Xorg-server: 1 record(s), with affected versions and fixes.

CVE-2026-55999 High · 7.8 CWE-122 Jul 8, 2026
xorg-server / xwayland glamor font atlas Heap Buffer Overflow
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.