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Case File

CVE-2023-0494

HIGH · CVSS 7.8 EPSS 0.90% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-03-27 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

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

Detected Signals
exploit remote code execution code execution

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

CVE
CVE-2023-0494
Severity
HIGH
CVSS
7.8
EPSS
0.90%

Original NVD Description

A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.

Related CVEs

Other vulnerabilities affecting the same vendor(s)