Detections
Analytics
CVE-2025-26595
high
Description
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
References
https://bugzilla.redhat.com/show_bug.cgi?id=2345257
https://access.redhat.com/security/cve/CVE-2025-26595
https://access.redhat.com/errata/RHSA-2025:2880
https://access.redhat.com/errata/RHSA-2025:2879
https://access.redhat.com/errata/RHSA-2025:2875
https://access.redhat.com/errata/RHSA-2025:2874
https://access.redhat.com/errata/RHSA-2025:2873
https://access.redhat.com/errata/RHSA-2025:2866
https://access.redhat.com/errata/RHSA-2025:2865
https://access.redhat.com/errata/RHSA-2025:2862
https://access.redhat.com/errata/RHSA-2025:2861