CVE-2025-26598

7.8 HIGH
Published: February 25, 2025 Modified: November 03, 2025

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2500
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2502
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2861
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2862
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2865
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2866
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2873
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2874
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2875
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2879
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2025:2880
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-26598
Source: secalert@redhat.com
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2345254
Source: secalert@redhat.com
Issue Tracking

17 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.1%
19th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

tigervnc redhat x.org