CVE-2025-26598 Information

Description

An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value or supposedly NULL if no match was found. However the code will return the last element of the list if no matching device ID is found which can lead to out-of-bounds memory access.

CVSS Vector

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

Reference

https://access.redhat.com/security/cve/CVE-2025-26598 https://bugzilla.redhat.com/show_bug.cgi?id=2345254

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8