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

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / VMware vRealize Operations	VMware vRealize Operations prior to 8.4

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-01-18. Ransomware use: Known.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2021-03-31T17:51:51.000Z
• Last modified: 2025-10-21T23:25:50.479Z
• Added to CISA KEV: 2022-01-18
• BOD 22-01 due: 2022-02-01

09References

• www.vmware.com — https://www.vmware.com/security/advisories/VMSA-2021-0004.html
• packetstormsecurity.com — http://packetstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-S…