CVE-2025-26598
HIGHCVSS v3.1: 7.8 · EPSS: 0.0036 (27.9 percentile)
Source data as of:
At a glance
- Severity
- HIGH
- CVSS
- 7.8 v3.1 · NVD
- EPSS
- 0.0036 (27.9 percentile) · FIRST.org
- CISA KEV
- No
- Type
- Out-of-bounds Write · NVD CWE
- Attack conditions (CVSS vector)
- No user interaction · Source: NVD Vector
- Affected vendors
- tigervnc, redhat, x.org
- Published
- 2025-02-25 · Modified: 2026-06-29
- References
- Jump to references (8)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
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.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Distro https://access.redhat.com/errata/RHSA-2025:2500
- Distro https://access.redhat.com/errata/RHSA-2025:2502
- Distro https://access.redhat.com/errata/RHSA-2025:2861
- Distro https://access.redhat.com/errata/RHSA-2025:2862
- Distro https://access.redhat.com/errata/RHSA-2025:2865
- Distro https://access.redhat.com/errata/RHSA-2025:2866
- Distro https://access.redhat.com/errata/RHSA-2025:2873
- Distro https://access.redhat.com/errata/RHSA-2025:2874