vulnerability
Rocky Linux: CVE-2025-26595: 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
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
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-2025-26595
- https://attackerkb.com/topics/CVE-2025-26595
- CWE-121
- CWE-787
- EUVD-EUVD-2025-5372
- 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-2025-5372
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.