CVE-2021-21983

Name: CVE-2021-21983
Creator: NVD / NIST
Published: 2021-03-31T18:15:14.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 68.56%

Last modified Jun 17, 2026

CVE-2021-21983 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Arbitrary file write vulnerability in vRealize Operations Manager API (CVE-2021-21983) prior to 8.4 may allow an authenticated malicious actor with network access to the vRealize Operations Manager API can write files to arbitrary locations on the underlying photon operating system.. EPSS estimates a 68.56% chance of exploitation in the next 30 days.

Description

Arbitrary file write vulnerability in vRealize Operations Manager API (CVE-2021-21983) prior to 8.4 may allow an authenticated malicious actor with network access to the vRealize Operations Manager API can write files to arbitrary locations on the underlying photon operating system.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

68.56%

99.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Vmware	Cloud Foundation	3.0
Vmware	Cloud Foundation	3.0.1
Vmware	Cloud Foundation	3.0.1.1
Vmware	Cloud Foundation	3.5
Vmware	Cloud Foundation	3.5.1
Vmware	Cloud Foundation	3.7
Vmware	Cloud Foundation	3.7.1
Vmware	Cloud Foundation	3.7.2
Vmware	Cloud Foundation	3.8
Vmware	Cloud Foundation	3.8.1
Vmware	Cloud Foundation	3.9
Vmware	Cloud Foundation	3.9.1
Vmware	Cloud Foundation	3.10
Vmware	Cloud Foundation	4.0
Vmware	Cloud Foundation	4.0.1
Vmware	Vrealize Operations Manager	7.0.0
Vmware	Vrealize Operations Manager	7.5.0
Vmware	Vrealize Operations Manager	8.0.0
Vmware	Vrealize Operations Manager	8.0.1
Vmware	Vrealize Operations Manager	8.1.0
Vmware	Vrealize Operations Manager	8.1.1
Vmware	Vrealize Operations Manager	8.2.0
Vmware	Vrealize Operations Manager	8.3.0
Vmware	Vrealize Suite Lifecycle Manager	8.0
Vmware	Vrealize Suite Lifecycle Manager	8.0.1
Vmware	Vrealize Suite Lifecycle Manager	8.1
Vmware	Vrealize Suite Lifecycle Manager	8.2

References

http://packetstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2021-0004.htmlVendor Advisory
http://packetstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2021-0004.htmlVendor Advisory

Timeline

Published: Mar 31, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21983?

How severe is CVE-2021-21983?

CVE-2021-21983 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 68.56% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21983?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21983?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST