CVE-2025-62230

A flaw was discovered in the X.Org X servers X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.3 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
redhatCNA
7.3 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
xorg-server
bullseye
vulnerable
trixie
ignored
bookworm
ignored
bullseye (security)
2:1.20.11-1+deb11u17
fixed
bookworm (security)
2:21.1.7-3+deb12u11
fixed
trixie (security)
2:21.1.16-1.3+deb13u1
fixed
forky
vulnerable
sid
2:21.1.20-1
fixed
xwayland
bookworm
ignored
trixie
ignored
forky
vulnerable
sid
vulnerable
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://access.redhat.com/security/cve/CVE-2025-62230
https://bugzilla.redhat.com/show_bug.cgi?id=2402653