Independent & educational platform Not a government body. No link or affiliation with any government organisation. Made for learning only. Test only systems you own or are authorised to test. Become a Partner or Sponsor → Full disclaimer

CVE-2021-21975

high CISA KEV

VMware Server Side Request Forgery in vRealize Operations Manager API

Vendor / product: VMware — 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.

CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2021-03-31 18:15
Modified: 2026-10-02 14:54
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:07 UTC
Exploitation
Listed in CISA KEV
Added 2022-01-18 · due 2022-02-01
Known ransomware use: Known

Required action (CISA)

Apply updates per vendor instructions.

Affected products

vmware / cloud_foundation 3.0, 3.0.1, 3.0.1.1, 3.5, 3.5.1, 3.7
vmware / vrealize_operations_manager 7.0.0, 7.5.0, 8.0.0, 8.0.1, 8.1.0, 8.1.1
vmware / vrealize_suite_lifecycle_manager 8.0, 8.0.1, 8.1, 8.2

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://www.vmware.com/security/advisories/VMSA-2021-0004.html
Vendor advisory: https://www.vmware.com/security/advisories/VMSA-2021-0004.html

References

Data sources

CISA KEV — fetched 2026-10-27 06:50 UTC · record ↗
NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores

Related CVEs