March 7, 2022 · Applied Cybernetics Group
CVE-2021-21973 — VMware vCenter Server and Cloud Foundation
VMware vCenter Server and Cloud Foundation Server Side Request Forgery (SSRF) Vulnerability
- Added to KEV
2022-03-07- Federal due date
2022-03-21- Vendor
- VMware
- Product
- vCenter Server and Cloud Foundation
- EPSS
- 99.7th percentile (score 0.880, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- ATT&CK
- T1046 , T1190 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2021-21973
CISA short description
VMware vCenter Server and Cloud Foundation Server contain a SSRF vulnerability due to improper validation of URLs in a vCenter Server plugin. This allows for information disclosure.
Required action
Apply updates per vendor instructions.