CVE-2021-21975
VMware Server Side Request Forgery in vRealize Operations Manager API is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply updates per vendor instructions.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-21975
Description
Server Side Request Forgery in vRealize Operations Manager API (CVE-2021-21975) prior to 8.4 may allow a malicious actor with network access to the vRealize Operations Manager API can perform a Server Side Request Forgery attack to steal administrative credentials.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation Context
as of October 17, 2026- CISA added CVE-2021-21975 to the KEV catalog 293 days after its CVE record was published.
- It is one of 33 VMware entries in the CISA KEV catalog, and one of 11 added in 2022.
- Its current EPSS score (78.0%) is higher than that of 63% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| - | VMware vRealize Operations | VMware vRealize Operations prior to 8.4 |
References
2 LinksRecord Details
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