vulnerability
Rocky Linux: CVE-2025-26599: xorg-x11-server-Xwayland (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Feb 25, 2025 | May 8, 2025 | Mar 31, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Feb 25, 2025
Added
May 8, 2025
Modified
Mar 31, 2026
Description
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.
Solutions
rocky-upgrade-tigervncrocky-upgrade-tigervnc-debuginforocky-upgrade-tigervnc-debugsourcerocky-upgrade-tigervnc-serverrocky-upgrade-tigervnc-server-debuginforocky-upgrade-tigervnc-server-minimalrocky-upgrade-tigervnc-server-minimal-debuginforocky-upgrade-tigervnc-server-modulerocky-upgrade-tigervnc-server-module-debuginforocky-upgrade-xorg-x11-server-commonrocky-upgrade-xorg-x11-server-develrocky-upgrade-xorg-x11-server-xdmxrocky-upgrade-xorg-x11-server-xdmx-debuginforocky-upgrade-xorg-x11-server-xephyrrocky-upgrade-xorg-x11-server-xephyr-debuginforocky-upgrade-xorg-x11-server-xnestrocky-upgrade-xorg-x11-server-xnest-debuginforocky-upgrade-xorg-x11-server-xorgrocky-upgrade-xorg-x11-server-xorg-debuginforocky-upgrade-xorg-x11-server-xvfbrocky-upgrade-xorg-x11-server-xvfb-debuginforocky-upgrade-xorg-x11-server-xwaylandrocky-upgrade-xorg-x11-server-xwayland-debuginforocky-upgrade-xorg-x11-server-xwayland-debugsourcerocky-upgrade-xorg-x11-server-xwayland-devel
References
- CVE-2025-26599
- https://attackerkb.com/topics/CVE-2025-26599
- CWE-824
- EUVD-EUVD-2025-5424
- https://errata.rockylinux.org/RLSA-2025:2500
- https://errata.rockylinux.org/RLSA-2025:2502
- https://errata.rockylinux.org/RLSA-2025:7163
- https://errata.rockylinux.org/RLSA-2025:7165
- https://errata.rockylinux.org/RLSA-2025:7458
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-5424
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.