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CVE-2025-62229

Published: October 31, 2025Last modified: November 5, 2025

Description

A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption or a crash, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

Severity score breakdown

ParameterValue
Base score7.3
Attack VectorLOCAL
Attack complexityLOW
Privileges requiredLOW
User interactionNONE
ScopeUNCHANGED
ConfidentialityLOW
Integrity impactHIGH
Availability impactHIGH
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Status

ProductReleasePackageStatus
Alpaquita Linux23 LTSxorg-serverFixed (21.1.20-r0)
25 LTSxorg-serverFixed (21.1.20-r0)
Streamxorg-serverFixed (21.1.20-r0)

References

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