Use After Free Affecting xwayland package, versions <2:24.1.9-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.47% (39th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-XWAYLAND-13743302
  • published29 Oct 2025
  • disclosed30 Oct 2025

Introduced: 29 Oct 2025

CVE-2025-62229  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:unstable xwayland to version 2:24.1.9-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xwayland package and not the xwayland package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.

References

CVSS Base Scores

version 3.1