CVE-2026-34001 | BDVDB-2026-328627 Detail

Description#

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.

Impact#

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Exploit#

History#

1. Version 12026-04-23Record published in the CVE List.
2. Version 22026-11-04Most recent update recorded in the CVE List.