⚡ Exploit-DB.ai CRITICAL
CRITICAL

CVE-2021-4034

Published: March 18, 2026 · Source: National Vulnerability Database (NVD)

⚡ AI Threat Assessment

PwnKit: Any local user on Linux can become root via pkexec SUID binary. Affects all major Linux distributions. PoC available publicly. Patch polkit immediately and monitor SUID binary execution in your EDR.

📋 Official Description

A local privilege escalation vulnerability was found in polkit pkexec allows unprivileged users to execute arbitrary code as root.

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