CVE-2025-26594 HIGH

CVE-2025-26594: X.org: xwayland: use-after-free of the root cursor

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-416
Published February 25, 2025
Last update April 6, 2026
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.

Key dates

02Disclosure timeline

February 25, 2025 CVE published
April 6, 2026 Record updated