AUGUST 4, 2026
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Case File

CVE-2024-21885

HIGH · CVSS 7.8 EPSS 1.42% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-02-28 · 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
remote code execution code execution

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

CVE
CVE-2024-21885
Severity
HIGH
CVSS
7.8
EPSS
1.42%

Original NVD Description

A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.