CVE-2021-21980: VMware Cloud Foundation

High severity, CVSS 7.5. EPSS: 4.7% chance of exploitation in the next 30 days.

The vSphere Web Client (FLEX/Flash) contains an unauthorized arbitrary file read vulnerability. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to gain access to sensitive information.

Affected products

• VMware Cloud Foundation: version 3.0 only
• VMware vCenter Server: version 6.5 only; version 6.7 only

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