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Case File

CVE-2021-4070

CRITICAL · CVSS 9.1 EPSS 0.86% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-02-23 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It affects GitHub. 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.

GitHub PoC Links
github.com ↗

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

CVE
CVE-2021-4070
Severity
CRITICAL
CVSS
9.1
EPSS
0.86%
GitHub

Original NVD Description

Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0.