Use-after-free in X.org Server and Xwayland - CVE-2025-26594

 

Use-after-free in X.org Server and Xwayland - CVE-2025-26594

Published: February 25, 2025 / Updated: March 14, 2025


Vulnerability identifier: #VU104190
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-2025-26594
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: X.org
Affected software:
X.org Server
Xwayland

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error of the root cursor. A local user can execute arbitrary code with elevated privileges.


How to mitigate CVE-2025-26594

Install updates from vendor's website.

Sources