# CVE-2021-21975: VMware Server Side Request Forgery in vRealize Operations Manager API

> CVE-2021-21975: VMware Server Side Request Forgery in vRealize Operations Manager API. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2021-21975
Last updated: 2026-10-01T20:01:35Z

- Published: 2021-03-31 17:51 UTC · Updated: 2026-10-01 20:01 UTC · Assigner: vmware
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 78.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-01-18, federal due date 2022-02-01, ransomware use: Known

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- n/a: VMware vRealize Operations

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-21975)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2021-21975)
- [http://packetstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.html](http://packetstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.html)
- [https://www.vmware.com/security/advisories/VMSA-2021-0004.html](https://www.vmware.com/security/advisories/VMSA-2021-0004.html)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2021-21975 · Markdown: https://rewindex.com/cve/CVE-2021-21975.md · JSON: https://rewindex.com/api/v1/cves/CVE-2021-21975 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:31.094Z