SFCB (Small Footprint CIM Broker) as used in ESXi has an authentication bypass vulnerability. A malicious actor with network access to port 5989 on ESXi may exploit this issue to bypass SFCB authentication by sending a specially crafted request.
References
| Link | Resource |
|---|---|
| https://www.vmware.com/security/advisories/VMSA-2021-0014.html | Vendor Advisory |
| https://www.vmware.com/security/advisories/VMSA-2021-0014.html | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
Configuration 2 (hide)
|
History
31 Oct 2025, 11:44
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:* |
21 Nov 2024, 05:49
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://www.vmware.com/security/advisories/VMSA-2021-0014.html - Vendor Advisory |
Information
Published : 2021-07-13 19:15
Updated : 2025-10-31 11:44
NVD link : CVE-2021-21994
Mitre link : CVE-2021-21994
CVE.ORG link : CVE-2021-21994
JSON object : View
Products Affected
vmware
- esxi
- cloud_foundation
CWE
CWE-287
Improper Authentication
