SEPTEMBER 29, 2026
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Case File

CVE-2021-43267

CRITICAL · CVSS 9.8 EPSS 57.58% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-02 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Linux. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 57.6% probability of exploitation in the next 30 days. 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
GitHub PoC Links

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

CVE
CVE-2021-43267
Severity
CRITICAL
CVSS
9.8
EPSS
57.58%
Linux

Original NVD Description

An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.

Related CVEs

Other vulnerabilities affecting the same vendor(s)