⚡ Exploit-DB.ai HIGH
HIGH

CVE-2021-22555

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

⚡ AI Threat Assessment

Linux kernel Netfilter heap OOB write enabling local privilege escalation. Apply kernel patches for your distribution. Monitor for unusual SUID/SGID execution and unexpected root process spawning.

📋 Official Description

A heap out-of-bounds write affecting Linux kernel Netfilter subsystem can be used to escalate privilege to root.

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