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CVE-2026-50261

CVE-kwetsbaarheidsdetails - eXtreme Datacenter Security Operations

Gepubliceerd 2026-06-05 10:36:33

Laatst bijgewerkt 2026-08-05 12:15:02

Toegewezen door redhat

CVSS-score 7.8

Status PUBLISHED

Beschrijving

A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter(). A client that sets up multiple SyncCounters can trigger a use-after-free when destroying those counters via a second client connection while changing those counters. This may be used to crash the server, or for privilege escalation if the X server runs as root.

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