CVE-2026-93515

.Org Server Present Extension Use-After-Free

State: Published
Severity: 6.8 Medium
Published: Oct 28, 2026
Updated: Oct 28, 2026
Reserved: Sep 18, 2026

Description

A use-after-free in present_clear_window_notifies() in the X.org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by malicious X clients to crash or potentially execute code in the X server context.

Scores

CVSS	Score	Vector	Source
4.0	6.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	suse

Weaknesses

CWE-416 Use after free

Affected Products

Product	Versions
xorg-x11-serverX.org	before 21.1.25Affected
xwaylandx.org	before 24.1.14Affected

References

https://gitlab.freedesktop.org/xorg/xserver/-/commit/1b6955c3108e6b43433aefe860070708e6f43d1bpatch

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