Integer overflow in Xwayland and X.org Server - CVE-2025-62231
Published: October 28, 2025
Vulnerability identifier: #VU117712
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-62231
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: X.org
Affected software:
Xwayland
X.org Server
Xwayland
X.org Server
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the Xkb extension XkbSetCompatMap(). A local user can trigger an integer overflow and execute arbitrary code on the target system.
How to mitigate CVE-2025-62231
Install updates from vendor's website.