CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NCVE-2021-21973
Medium (5.3) in VMware vCenter Server and Cloud Foundation. In CISA KEV since 2022-03-07. EPSS 88% chance of exploitation in the next 30 days.
The vSphere Client (HTML5) contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue by sending a POST request to vCenter Server plugin leading to information disclosure. 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).
Severity
- EPSS
- 88% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
- CISA KEV
- listed 2022-03-07, due 2022-03-21
- CWE
- CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vmware:cloud_foundation
- vmware:vcenter_server