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Status published
High
CVE-2025-26597
Xorg: xwayland: buffer overflow in xkbchangetypesofkey()
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://access.redhat.com/errata/RHSA-2025:2500
- https://access.redhat.com/errata/RHSA-2025:2502
- https://access.redhat.com/errata/RHSA-2025:2861
- https://access.redhat.com/errata/RHSA-2025:2862
- https://access.redhat.com/errata/RHSA-2025:2865
- https://access.redhat.com/errata/RHSA-2025:2866
- https://access.redhat.com/errata/RHSA-2025:2873
- https://access.redhat.com/errata/RHSA-2025:2874
- https://access.redhat.com/errata/RHSA-2025:2875
- https://access.redhat.com/errata/RHSA-2025:2879
- https://access.redhat.com/errata/RHSA-2025:2880
- https://access.redhat.com/errata/RHSA-2025:3976
- https://access.redhat.com/errata/RHSA-2025:7163
- https://access.redhat.com/errata/RHSA-2025:7165
- https://access.redhat.com/errata/RHSA-2025:7458
- https://access.redhat.com/security/cve/CVE-2025-26597
- https://bugzilla.redhat.com/show_bug.cgi?id=2345255
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View all reports →Affected Software
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 6
Vulnerable Versions:
0, 22.0.0, 0:24.1.5-3.el10_0, 0:1.1.0-25.el6_10, 0:1.8.0-36.el7_9, 0:1.20.4-30.el7_9, 0:1.13.1-15.el8_10, 0:1.9.0-15.el8_2.13, 0:1.11.0-8.el8_4.12, 0:1.12.0-6.el8_6.13, 0:1.12.0-15.el8_8.12, 0:1.14.1-1.el9_5.1, 0:1.20.11-28.el9_6, 0:23.2.7-3.el9_6, 0:1.11.0-22.el9_0.13, 0:1.12.0-14.el9_2.10, 0:1.13.1-8.el9_4.5
Timeline
Official Publish:
February 25th, 2025
Last Modified:
June 29th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H