CVE-2025-26594

Description

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2345248

https://access.redhat.com/security/cve/CVE-2025-26594

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

https://access.redhat.com/errata/RHSA-2025:2502

https://access.redhat.com/errata/RHSA-2025:2500

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3