CVE-2021-21983

Exp

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.

Published: 2021-03-31 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-21983 is rated High Exploit Risk (70.7/100): CVSS Medium severity, with high exploitation likelihood (EPSS 68.56%, 99th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-21983

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-21983

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 83.18% 68.56% -14.62%
2 2025-11-21 89.24% 83.18% -6.07%
3 2025-11-18 — 89.24% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-21983

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.2 [email protected]
8.5 2.0 HIGH
AV:N/AC:L/Au:S/C:N/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 9.2 [email protected]

Weakness enumeration for CVE-2021-21983

Affected software / configurations for CVE-2021-21983

Vendor Product Version Raw CPE
vmware cloud_foundation 3.0 cpe:2.3:a:vmware:cloud_foundation:3.0:*:*:*:*:*:*:*
vmware cloud_foundation 3.0.1 cpe:2.3:a:vmware:cloud_foundation:3.0.1:*:*:*:*:*:*:*
vmware cloud_foundation 3.0.1.1 cpe:2.3:a:vmware:cloud_foundation:3.0.1.1:*:*:*:*:*:*:*
vmware cloud_foundation 3.5 cpe:2.3:a:vmware:cloud_foundation:3.5:*:*:*:*:*:*:*
vmware cloud_foundation 3.5.1 cpe:2.3:a:vmware:cloud_foundation:3.5.1:*:*:*:*:*:*:*
vmware cloud_foundation 3.7 cpe:2.3:a:vmware:cloud_foundation:3.7:*:*:*:*:*:*:*
vmware cloud_foundation 3.7.1 cpe:2.3:a:vmware:cloud_foundation:3.7.1:*:*:*:*:*:*:*
vmware cloud_foundation 3.7.2 cpe:2.3:a:vmware:cloud_foundation:3.7.2:*:*:*:*:*:*:*
vmware cloud_foundation 3.8 cpe:2.3:a:vmware:cloud_foundation:3.8:*:*:*:*:*:*:*
vmware cloud_foundation 3.8.1 cpe:2.3:a:vmware:cloud_foundation:3.8.1:*:*:*:*:*:*:*
vmware cloud_foundation 3.9 cpe:2.3:a:vmware:cloud_foundation:3.9:*:*:*:*:*:*:*
vmware cloud_foundation 3.9.1 cpe:2.3:a:vmware:cloud_foundation:3.9.1:*:*:*:*:*:*:*
vmware cloud_foundation 3.10 cpe:2.3:a:vmware:cloud_foundation:3.10:*:*:*:*:*:*:*
vmware cloud_foundation 4.0 cpe:2.3:a:vmware:cloud_foundation:4.0:*:*:*:*:*:*:*
vmware cloud_foundation 4.0.1 cpe:2.3:a:vmware:cloud_foundation:4.0.1:*:*:*:*:*:*:*
vmware vrealize_operations_manager 7.0.0 cpe:2.3:a:vmware:vrealize_operations_manager:7.0.0:*:*:*:*:*:*:*
vmware vrealize_operations_manager 7.5.0 cpe:2.3:a:vmware:vrealize_operations_manager:7.5.0:*:*:*:*:*:*:*
vmware vrealize_operations_manager 8.0.0 cpe:2.3:a:vmware:vrealize_operations_manager:8.0.0:*:*:*:*:*:*:*
vmware vrealize_operations_manager 8.0.1 cpe:2.3:a:vmware:vrealize_operations_manager:8.0.1:*:*:*:*:*:*:*
vmware vrealize_operations_manager 8.1.0 cpe:2.3:a:vmware:vrealize_operations_manager:8.1.0:*:*:*:*:*:*:*
vmware vrealize_operations_manager 8.1.1 cpe:2.3:a:vmware:vrealize_operations_manager:8.1.1:*:*:*:*:*:*:*
vmware vrealize_operations_manager 8.2.0 cpe:2.3:a:vmware:vrealize_operations_manager:8.2.0:*:*:*:*:*:*:*
vmware vrealize_operations_manager 8.3.0 cpe:2.3:a:vmware:vrealize_operations_manager:8.3.0:*:*:*:*:*:*:*
vmware vrealize_suite_lifecycle_manager 8.0 cpe:2.3:a:vmware:vrealize_suite_lifecycle_manager:8.0:*:*:*:*:*:*:*
vmware vrealize_suite_lifecycle_manager 8.0.1 cpe:2.3:a:vmware:vrealize_suite_lifecycle_manager:8.0.1:*:*:*:*:*:*:*
vmware vrealize_suite_lifecycle_manager 8.1 cpe:2.3:a:vmware:vrealize_suite_lifecycle_manager:8.1:*:*:*:*:*:*:*
vmware vrealize_suite_lifecycle_manager 8.2 cpe:2.3:a:vmware:vrealize_suite_lifecycle_manager:8.2:*:*:*:*:*:*:*

References for CVE-2021-21983

cvelogic Threat Intelligence