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Case File

CVE-2021-46686

CRITICAL · CVSS 9.8 EPSS 1.40% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-02-18 · 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.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

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

CVE
CVE-2021-46686
Severity
CRITICAL
CVSS
9.8
EPSS
1.40%

Original NVD Description

Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in acmailer CGI ver.4.0.3 and earlier and acmailer DB ver.1.1.5 and earlier. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker.