CVE-2025-26598
7.8
HIGH
CVSS 3.1
EPSS 0.03%
Description
An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the last element of the list if no matching device ID is found, which can lead to out-of-bounds memory access.
How to fix CVE-2025-26598
To remediate CVE-2025-26598, upgrade the affected package to a fixed version below.
- —upgrade to 2:1.20.11-1+deb11u15 or later
- —no fix listed
Is CVE-2025-26598 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 |