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CVE-2021-21975

96
FAUCET Score

CVE-2021-21975 is a critical Server-Side Request Forgery (SSRF) vulnerability in VMware vRealize Operations Manager API, affecting versions prior to 8.4, as well as Cloud Foundation and vRealize Suite Lifecycle Manager. With a CVSS score of 7.5 (HIGH), this vulnerability allows unauthenticated attackers with network access to steal administrative credentials. It is actively exploited in the wild, including in ransomware campaigns, and has readily available exploit code via Metasploit and Nuclei templates. The high EPSS score, FAUCET Risk Score of 100/100, and extensive community discussion underscore its severe and immediate threat.

Impacted Technologies

VendorProductVersion(s)CPE
3.0CPE matchmatch criteria
cpe:2.3:a:vmware:cloud_foundation:3.0:*:*:*:*:*:*:*
3.0.1CPE matchmatch criteria
cpe:2.3:a:vmware:cloud_foundation:3.0.1:*:*:*:*:*:*:*
3.0.1.1CPE matchmatch criteria
cpe:2.3:a:vmware:cloud_foundation:3.0.1.1:*:*:*:*:*:*:*
3.5CPE matchmatch criteria
cpe:2.3:a:vmware:cloud_foundation:3.5:*:*:*:*:*:*:*
3.5.1CPE matchmatch criteria
cpe:2.3:a:vmware:cloud_foundation:3.5.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
78.29%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Jan 18, 2022
Metasploit: VMware vRealize Operations (vROps) Manager SSRF RCE · Mar 30, 2021
Nuclei: CVE-2021-21975 · Mar 31, 2021
This CVE's current EPSS score of 0.7829 is in the 99th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

vmwarevendor investigatingvia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
vmware.com / security/advisories/VMSA-2021-0004.html
Vendor Advisory