CVE-2025-26594
xorg-server - security update
7.8
HIGH
CVSS 3.1
EPSS 0.03%
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.
How to fix CVE-2025-26594
To remediate CVE-2025-26594, upgrade the affected package to a fixed version below.
- Debian/xorg-server—upgrade to 2:1.20.11-1+deb11u15 or later
- —upgrade to 2:1.20.11-1+deb11u15 or later
- —upgrade to 2:21.1.7-3+deb12u9 or later
- —no fix listed
Is CVE-2025-26594 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2:1.20.11-1+deb11u15
- from 0, < 2:1.20.11-1+deb11u15
- from 0, < 2:21.1.7-3+deb12u9
- from 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 |