CVE-2021-21975

Server Side Request Forgery in vRealize Operations Manager API (CVE-2021-21975) prior to 8.4 may...

7.5 HighIn KEVPublic exploit

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

78.0%Up 76.2 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Record: CVE-2021-21975
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-918
Updated: 2026-11-02

CVE List 9.8

Record: CVE-2021-21975
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-918
Updated: 2026-11-02

EUVDEUVD-2021-9146 9.8

Record: EUVD-2021-9146
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-px27-325w-m34c 7.5

Server Side Request Forgery in vRealize Operations Manager API (CVE-2021-21975) prior to 8.4 may...

Record: GHSA-px27-325w-m34c
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-918
Updated: 2026-11-02

CISA KEV No score

VMware Server Side Request Forgery in vRealize Operations Manager API

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.

Record: CVE-2021-21975
Weakness: CWE-918
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Metasploit	VMware vRealize Operations (vROps) Manager SSRF RCE	2021-03-30
PoC in GitHub	Al1ex/CVE-2021-21975	2021-03-31
PoC in GitHub	Henry4E36/VMWare-vRealize-SSRF	2021-03-31
PoC in GitHub	dorkerdevil/CVE-2021-21975	2021-03-31
PoC in GitHub	GuayoyoCyber/CVE-2021-21975	2021-04-01
PoC in GitHub	murataydemir/CVE-2021-21975	2021-04-02
PoC in GitHub	rabidwh0re/REALITY_SMASHER	2021-04-06
PoC in GitHub	Vulnmachines/VMWare-CVE-2021-21975	2021-04-10
PoC in GitHub	DarkFunct/exp_hub	2021-09-29
Nuclei	vRealize Operations Manager API - Server-Side Request Forgery

History

History
Recorded	Changed	Sources
Nov 3, 2026	exploitation, exploits
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, CISA KEV, Metasploit, Nuclei, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-21975 is a high vulnerability (CVSS 7.5) in Vmware Vrealize Operations Manager Api, published March 31, 2021. CISA lists it as known to be exploited, since January 18, 2022. EUVD reports exploitation since January 18, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 78.0%, the 99th percentile. No source names a fixed version.