CVE-2025-26597

Published: Feb 25, 2025

Modified: Jun 2, 2026

PUBLISHED

CVSS v3.1

7.8

HIGH

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.

Vendor	Product	Versions
Unknown	xserver	affected `0 - < 21.1.16` affected `22.0.0 - < 24.1.6`
Red Hat	Red Hat Enterprise Linux 10	unaffected `0:24.1.5-3.el10_0 - < *`
Red Hat	Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION	unaffected `0:1.1.0-25.el6_10 - < *`
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected `0:1.8.0-36.el7_9 - < *`
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected `0:1.20.4-30.el7_9 - < *`
Red Hat	Red Hat Enterprise Linux 8	unaffected `0:1.13.1-15.el8_10 - < *`
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected `0:1.9.0-15.el8_2.13 - < *`
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected `0:1.11.0-8.el8_4.12 - < *`
Red Hat	Red Hat Enterprise Linux 8.4 Telecommunications Update Service	unaffected `0:1.11.0-8.el8_4.12 - < *`
Red Hat	Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions	unaffected `0:1.11.0-8.el8_4.12 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected `0:1.12.0-6.el8_6.13 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected `0:1.12.0-6.el8_6.13 - < *`
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	unaffected `0:1.12.0-6.el8_6.13 - < *`
Red Hat	Red Hat Enterprise Linux 8.8 Extended Update Support	unaffected `0:1.12.0-15.el8_8.12 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:1.14.1-1.el9_5.1 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:1.20.11-28.el9_6 - < *`
Red Hat	Red Hat Enterprise Linux 9	unaffected `0:23.2.7-3.el9_6 - < *`
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	unaffected `0:1.11.0-22.el9_0.13 - < *`
Red Hat	Red Hat Enterprise Linux 9.2 Extended Update Support	unaffected `0:1.12.0-14.el9_2.10 - < *`
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	unaffected `0:1.13.1-8.el9_4.5 - < *`
Red Hat	Red Hat Enterprise Linux 6	All versions
Red Hat	Red Hat Enterprise Linux 8	All versions
Red Hat	Red Hat Enterprise Linux 8	All versions