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CVE-2021-21975

7.5 · HIGHActively Exploited

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 Ser…

Published Mar 31, 2021CWE-918EPSS 78.00%

Overview

CVE-2021-21975 is a high-severity vulnerability. It was published on March 31, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.htmlRefwww.vmware.com/security/advisories/VMSA-2021-0004.htmlRefpacketstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.htmlRefwww.vmware.com/security/advisories/VMSA-2021-0004.htmlCISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21975

How CyberStrike helps

Frequently asked questions

What is CVE-2021-21975?

CVE-2021-21975 is a high-severity vulnerability. It was published on March 31, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2021-21975?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-21975?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-21975?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-21975 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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