CVE-2026-88806 | x.org libX11 up to 1.8.13 XkbGetMap buffer overflow

September 21, 2026 Yanac

A vulnerability marked as critical has been reported in x.org libX11 up to 1.8.13. Affected by this vulnerability is an unknown functionality of the component XkbGetMap Handler. Performing a manipulation results in buffer overflow.

This vulnerability is identified as CVE-2026-88806. The attack can be initiated remotely. There is not any exploit available.

It is suggested to upgrade the affected component.VulDB Recent EntriesRead More