CVE-2026-93516 — MEDIUM (5.5)

Vulnerability Description

A use-after-free caused by lack of lifecycle management when adding / removing XInput master devices in X.org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X Clients to crash the X server or potentially execute code in X server context.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-416

References

https://gitlab.freedesktop.org/xorg/xserver/-/commit/be572634158850fff4e9829cee8

FAQ

What is CVE-2026-93516?

CVE-2026-93516 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A use-after-free caused by lack of lifecycle management when adding / removing XInput master devices in X.org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X Clien...

How severe is CVE-2026-93516?

CVE-2026-93516 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-93516?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.