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Case File

CVE-2021-43118

CRITICAL · CVSS 9.8 EPSS 34.84% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-03-29 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 34.8% 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.

GitHub PoC Links

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

CVE
CVE-2021-43118
Severity
CRITICAL
CVSS
9.8
EPSS
34.84%

Original NVD Description

A Remote Command Injection vulnerability exists in DrayTek Vigor 2960 1.5.1.3, DrayTek Vigor 3900 1.5.1.3, and DrayTek Vigor 300B 1.5.1.3 via a crafted HTTP message containing malformed QUERY STRING in mainfunction.cgi, which could let a remote malicious user execute arbitrary code.

Related CVEs

Other vulnerabilities affecting the same vendor(s)