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Case File

CVE-2021-43411

HIGH · CVSS 7.5 EPSS 1.23% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-07 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references.

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-2021-43411
Severity
HIGH
CVSS
7.5
EPSS
1.23%

Original NVD Description

An issue was discovered in GNU Hurd before 0.9 20210404-9. When trying to exec a setuid executable, there's a window of time when the process already has the new privileges, but still refers to the old task and is accessible through the old process port. This can be exploited to get full root access.

Related CVEs

Other vulnerabilities affecting the same vendor(s)