Out-of-bounds read in X.org Server - CVE-2026-93524
Published: October 20, 2026
Vulnerability identifier: #VU156271
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93524
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the handling of XkbSetMap requests. A local user can trigger an out-of-bounds read error and read contents of memory on the system.
Affected software
X.org Server
How to mitigate CVE-2026-93524
Install updates from vendor's website.