CVE-2026-34001
HIGHCVSS 7.8/10EPSS 0.26%
Last modified
This CVE is reserved or awaiting analysis. Details will appear once published by NVD.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Are you affected by CVE-2026-34001?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST