CVE-2025-26594
HIGH7.8EPSS 0.03%xorg-server - security update
Published: 2/25/2025Modified: 4/28/2026
Description
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.
Affected packages (4)
- Debian/xorg-serverfrom 0, < 2:1.20.11-1+deb11u15
- Debian/xorg-serverfrom 0, < 2:1.20.11-1+deb11u15
- Debian/xorg-serverfrom 0, < 2:21.1.7-3+deb12u9
- Debian/xwaylandfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |