CVE-2025-62229 — Use After Free in Xwayland

CWE-416 — Use After Free8 documents8 sources
Severity
7.3HIGHNVD
EPSS
0.0%
top 97.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
X.org XwaylandX.org Xorg-server
Timeline
PublishedOct 30

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:HExploitability: 1.8 | Impact: 5.5

Affected Packages3 packages

▶CVEListV5x.org/xwayland1.15.0 — 24.1.9
▶Debianx.org/xwayland< 2:24.1.9-1
▶Debianx.org/xorg-server< 2:1.20.11-1+deb11u17+3

🔴Vulnerability Details

3
GHSA
GHSA-49pm-cgmh-hw25: A flaw was found in the X↗2025-10-30
▶
OSV
CVE-2025-62229: A flaw was found in the X↗2025-10-30
▶
CVEList
Xorg: xmayland: use-after-free in xpresentnotify structure creation↗2025-10-30
▶

📋Vendor Advisories

4
Red Hat
xorg: xmayland: Use-after-free in XPresentNotify structure creation↗2025-10-29
▶
Ubuntu
X.Org X Server vulnerabilities↗2025-10-29
▶
Microsoft
Xorg: xmayland: use-after-free in xpresentnotify structure creation↗2025-10-14
▶
Debian
CVE-2025-62229: xorg-server - A flaw was found in the X.Org X server and Xwayland when processing X11 Present ...↗2025
▶
CVE-2025-62229 — Use After Free in X.org Xwayland | cvebase