CVE-2025-26597 | Red Hat Enterprise Linux 6/7/8/9 X.org X11 Server/TigerVNC XkbChangeTypesOfKey heap-based overflow

A vulnerability was found in Red Hat Enterprise Linux 6/7/8/9. It has been classified as critical. This affects the function XkbChangeTypesOfKey of the component X.org X11 Server/TigerVNC. The manipulation leads to heap-based buffer overflow.

This vulnerability is uniquely identified as CVE-2025-26597. Local access is required to approach this attack. There is no exploit available.