Use After Free Affecting tigervnc-server-debuginfo package, versions <0:1.13.1-15.el8_10


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.39% (34th percentile)

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  • Snyk IDSNYK-ROCKY8-TIGERVNCSERVERDEBUGINFO-11334136
  • published30 Jul 2025
  • disclosed25 Feb 2025

Introduced: 25 Feb 2025

CVE-2025-26594  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 tigervnc-server-debuginfo to version 0:1.13.1-15.el8_10 or higher.
This issue was patched in RLSA-2025:2502.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-server-debuginfo package and not the tigervnc-server-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1