CVE-2025-26597
7.8
HIGH
CVSS 3.1
EPSS 0.03%
Description
A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.
How to fix CVE-2025-26597
To remediate CVE-2025-26597, upgrade the affected package to a fixed version below.
- —upgrade to 2:1.20.11-1+deb11u15 or later
- —no fix listed
Is CVE-2025-26597 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2:1.20.11-1+deb11u15
- 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 |