AUGUST 4, 2026
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Case File

CVE-2021-42099

CRITICAL · CVSS 9.8 EPSS 6.55% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-30 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

Detected Signals
remote code execution code execution

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

CVE
CVE-2021-42099
Severity
CRITICAL
CVSS
9.8
EPSS
6.55%

Original NVD Description

Zoho ManageEngine M365 Manager Plus before 4421 is vulnerable to file-upload remote code execution.