vulnerability
VMware vCenter: CVE-2021-21986: Authentication mechanism issue in vCenter Server Plug-ins
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 10 | (AV:N/AC:L/Au:N/C:C/I:C/A:C) | May 25, 2021 | May 27, 2021 | Jan 20, 2026 |
Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
May 25, 2021
Added
May 27, 2021
Modified
Jan 20, 2026
Description
The vSphere Client (HTML5) contains a vulnerability in a vSphere authentication mechanism for the Virtual SAN Health Check, Site Recovery, vSphere Lifecycle Manager, and VMware Cloud Director Availability plug-ins. A malicious actor with network access to port 443 on vCenter Server may perform actions allowed by the impacted plug-ins without authentication.
Solution
vmware-vcenter-server-upgrade-latest
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