CVE-2025-26599

An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later.
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

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, 18:54

Type Values Removed Values Added
CWE CWE-824
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

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
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:*:*:*:*:*:*:*
References () https://access.redhat.com/security/cve/CVE-2025-26599 - () https://access.redhat.com/security/cve/CVE-2025-26599 - Third Party Advisory
References () https://bugzilla.redhat.com/show_bug.cgi?id=2345253 - () https://bugzilla.redhat.com/show_bug.cgi?id=2345253 - Issue Tracking
CWE CWE-824
First Time X.org
Redhat enterprise Linux
Tigervnc tigervnc
X.org xwayland
Redhat
X.org x Server
Tigervnc
CVSS v2 : unknown
v3 : 7.8
v2 : unknown
v3 : unknown

25 Feb 2025, 16:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-02-25 16:15

Updated : 2025-05-13 20:15


NVD link : CVE-2025-26599

Mitre link : CVE-2025-26599


JSON object : View

Products Affected

x.org

  • x_server
  • xwayland

tigervnc

  • tigervnc

redhat

  • enterprise_linux
CWE
CWE-824

Access of Uninitialized Pointer