SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2021-21975

VMware Server Side Request Forgery in vRealize Operations Manager API

KEVHIGH 7.5EPSS 78.0%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 1 February 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
78.00% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 18 January 2022 · due 1 February 2022 · used in ransomware campaigns
Weakness
CWE-918
Affected
vmware/cloud foundation · vmware/vrealize operations manager · vmware/vrealize suite lifecycle manager
Source
security@vmware.com
EPSS trend
0%40%80%26 October 2026: 78.00%26 October 202626 October 2026

EPSS 78.0% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-21975

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.