CVE-2026-33999 | X.org X Server XKB Compatibility Map integer underflow (EUVD-2026-25229 / Nessus ID 310423)
A vulnerability was found in X.org X Server. It has been rated as critical. Affected is an unknown function of the component XKB Compatibility Map Handler. This manipulation causes integer underflow.
The identification of this vulnerability is CVE-2026-33999. The attack can only be executed locally. There is no exploit available.