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.

INFO

Published Date :

2026-04-23T14:54:00.333Z

Last Modified :

2026-04-24T03:55:27.598Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34001 vulnerability.

Vendors Products
Redhat
  • Enterprise Linux
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34001.

URL Resource
https://access.redhat.com/security/cve/CVE-2026-34001 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2451109 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-34001 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-34001 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact