CVE-2026-93521

X.Org Server RandR ChangeProviderProperty Heap Buffer Overflow

State: Published
Severity: 7.8 High
Published: Oct 28, 2026
Updated: Oct 28, 2026
Reserved: Sep 18, 2026

Description

A buffer overflow in RandR ChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14 could be used by authenticated X clients to crash or execute code within the X server context.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	suse

Weaknesses

CWE-122 Heap-based buffer overflow

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/5dc9efd5a199717b53f70b9c6cd336a522370e46patch

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