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CVE-2021-21983

MediumPublished

Arbitrary file write vulnerability in vRealize Operations Manager API (CVE-2021-21983) prior to 8.4 may allow an authenticated malicious actor with network...

Published: Mar 31, 2021
Updated: Aug 12, 2026
Assigning CNA: vmware
Evidence observed: Aug 4, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

68.6%

High · next 30 days

Percentile: 99.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2021-21983Exploit
[CVE-2021-21983] VMware vRealize Operations (vROps) Manager API Arbitrary File Write Leads to Remote Code Execution (RCE)
REALITY_SMASHERExploit
vRealize RCE + Privesc (CVE-2021-21975, CVE-2021-21983, CVE-0DAY-?????)

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