CVE-2021-21983
High
High exploit probability or critical severity with a known exploit.
CVSS base
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
EPSS — probability of exploitation (30 days)
68.6%
99.3th percentile
CISA KEV
Not listed
Weakness / dates
—
Published 2021-03-31 · modified 2026-08-12
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | H | High |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2021-03-31 — Published (NVD)
- 2026-08-12 — Last modified (NVD)
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.
Affected
References
- exploit http://packetstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.html
- https://www.vmware.com/security/advisories/VMSA-2021-0004.html
- exploit http://packetstormsecurity.com/files/162349/VMware-vRealize-Operations-Manager-Server-Side-Request-Forgery-Code-Execution.html
- https://www.vmware.com/security/advisories/VMSA-2021-0004.html