CVE-2025-26601

A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers.
Configurations

Configuration 1 (hide)

cpe:2.3:a:tigervnc:tigervnc:-:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*
cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

History

16 May 2025, 23:15

Type Values Removed Values Added
References
  • () https://security.netapp.com/advisory/ntap-20250516-0004/ -

13 May 2025, 20:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2025:7458 -

13 May 2025, 15:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2025:7163 -
  • () https://access.redhat.com/errata/RHSA-2025:7165 -

08 May 2025, 16:48

Type Values Removed Values Added
CPE cpe:2.3:a:x.org:x_server:-:*:*:*:*:*:*:*
cpe:2.3:a:x.org:xwayland:-:*:*:*:*:*:*:*
cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*
cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*

10 Apr 2025, 19:19

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.8
References () https://access.redhat.com/errata/RHSA-2025:2500 - () https://access.redhat.com/errata/RHSA-2025:2500 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2875 - () https://access.redhat.com/errata/RHSA-2025:2875 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2862 - () https://access.redhat.com/errata/RHSA-2025:2862 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2874 - () https://access.redhat.com/errata/RHSA-2025:2874 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2879 - () https://access.redhat.com/errata/RHSA-2025:2879 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2873 - () https://access.redhat.com/errata/RHSA-2025:2873 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2865 - () https://access.redhat.com/errata/RHSA-2025:2865 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2866 - () https://access.redhat.com/errata/RHSA-2025:2866 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2861 - () https://access.redhat.com/errata/RHSA-2025:2861 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2880 - () https://access.redhat.com/errata/RHSA-2025:2880 - Third Party Advisory
References () https://access.redhat.com/errata/RHSA-2025:2502 - () https://access.redhat.com/errata/RHSA-2025:2502 - Third Party Advisory
CWE CWE-416

17 Mar 2025, 05:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2025:2879 -
  • () https://access.redhat.com/errata/RHSA-2025:2873 -
  • () https://access.redhat.com/errata/RHSA-2025:2866 -
  • () https://access.redhat.com/errata/RHSA-2025:2861 -
  • () https://access.redhat.com/errata/RHSA-2025:2880 -

17 Mar 2025, 03:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2025:2862 -
  • () https://access.redhat.com/errata/RHSA-2025:2874 -
  • () https://access.redhat.com/errata/RHSA-2025:2875 -
  • () https://access.redhat.com/errata/RHSA-2025:2865 -

10 Mar 2025, 13:15

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2025:2500 -
  • () https://access.redhat.com/errata/RHSA-2025:2502 -

04 Mar 2025, 17:22

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.8
v2 : unknown
v3 : unknown
CWE CWE-416
CPE cpe:2.3:a:x.org:x_server:-:*:*:*:*:*:*:*
cpe:2.3:a:x.org:xwayland:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:a:tigervnc:tigervnc:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
First Time X.org
Redhat enterprise Linux
Tigervnc tigervnc
X.org xwayland
Redhat
X.org x Server
Tigervnc
References () https://bugzilla.redhat.com/show_bug.cgi?id=2345251 - () https://bugzilla.redhat.com/show_bug.cgi?id=2345251 - Issue Tracking
References () https://access.redhat.com/security/cve/CVE-2025-26601 - () https://access.redhat.com/security/cve/CVE-2025-26601 - Third Party Advisory

25 Feb 2025, 16:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-02-25 16:15

Updated : 2025-05-16 23:15


NVD link : CVE-2025-26601

Mitre link : CVE-2025-26601


JSON object : View

Products Affected

x.org

  • x_server
  • xwayland

tigervnc

  • tigervnc

redhat

  • enterprise_linux
CWE
CWE-416

Use After Free