CVE-2021-22049: VMware vCenter Server

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

The vSphere Web Client (FLEX/Flash) contains an SSRF (Server Side Request Forgery) vulnerability in the vSAN Web Client (vSAN UI) plug-in. A malicious actor with network access to port 443 on vCenter Server may exploit this issue by accessing a URL request outside of vCenter Server or accessing an internal service.

Affected products

• VMware vCenter Server: version 6.5 only; version 6.7 only; version 7.0 only

Published 2021-11-24. Last modified 2026-06-17.