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CVE-2021-21975

VMware Server Side Request Forgery in vRealize Operations Manager API

7.5 HIGHActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 78.0%
  1. Published31 Mar 2021
  2. Added to CISA KEV18 Jan 2022
  3. Remediation due1 Feb 2022
Actively exploited (CISA KEV)

Server Side Request Forgery (SSRF) in vRealize Operations Manager API prior to 8.4 may allow a malicious actor with network access to the vRealize Operations Manager API to perform a SSRF attack to steal administrative credentials.

Added to KEV: 18 Jan 2022Federal remediation due: 1 Feb 2022Used in ransomware

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

VMware Cloud Foundation3.0 · 3.0.1 · 3.0.1.1 · 3.10
VMware Vrealize Operations Manager7.0.0 · 7.5.0 · 8.0.0 · 8.0.1
VMware Vrealize Suite Lifecycle Manager8.0 · 8.0.1 · 8.1 · 8.2

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2021-21975 being actively exploited?

Yes. CVE-2021-21975 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 18 Jan 2022. It has been used in ransomware campaigns.

How severe is CVE-2021-21975?

CVE-2021-21975 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 78.0% probability of exploitation.

Which products are affected by CVE-2021-21975?

Affected products include VMware Cloud Foundation, VMware Vrealize Operations Manager, VMware Vrealize Suite Lifecycle Manager.

How do I fix CVE-2021-21975?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2021-21975 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.