CVE-2026-50257 | X.org X11 Server miSyncDestroyFence use after free

SecurityVulns
Yanac

A vulnerability was found in X.org X11 Server. It has been classified as critical. The affected element is the function miSyncDestroyFence. The manipulation leads to use after free.

This vulnerability is documented as CVE-2026-50257. The attack needs to be performed locally. There is not any exploit available.VulDB Recent EntriesRead More