CVE-2026-34001
Awaiting Analysis
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BaseFortify
Publication date: 2026-04-23
Last updated on: 2026-05-04
Assigner: Red Hat, Inc.
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-825 | The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid. |
Attack-Flow Graph
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