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CVE-2026-34001

HIGH · CVSS 7.8 EPSS 0.01% Public Exploit

Source: NVD + CISA KEV + EPSS · Published: 2026-04-23 · Last synced: 2026-05-23

CyberRota Analysis

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Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-34001
Severity
HIGH
CVSS
7.8
EPSS
0.01%

Original 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.