cvedb.io
CVE-2021-21972
CRITICAL · CVSS 9.8 ⚠ KEV — EXPLOITED
EPSS exploitation probability: 100%
⚠ Listed in the CISA Known Exploited Vulnerabilities catalog — actively exploited.
Published 2021-11-03 · Last modified 2026-08-12T05:17:35.260

Summary

The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2).

Affected products

VMware — vCenter Server

Does this affect you?

Add your gear to cvedb and we'll alert you only when VMware ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.