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Case File

CVE-2021-33907

CRITICAL · CVSS 9.8 EPSS 2.96% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-27 · 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-2021-33907
Severity
CRITICAL
CVSS
9.8
EPSS
2.96%
Windows

Original NVD Description

The Zoom Client for Meetings for Windows in all versions before 5.3.0 fails to properly validate the certificate information used to sign .msi files when performing an update of the client. This could lead to remote code execution in an elevated privileged context.