CVE-2021-21986: Critical severity vmware vcenter vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-21986?
CVE-2021-21986 refers to a vulnerability in the vSphere Client (HTML5) authentication mechanism for certain VMware plugins.
Which software versions are affected by CVE-2021-21986?
CVE-2021-21986 affects VMware vCenter Server versions 6.5, 6.7, and 7.0, as well as VMware Cloud Foundation versions 3.x and 4.x.
What is the severity of CVE-2021-21986?
CVE-2021-21986 has a severity rating of 9.8, which is considered critical.
How can I fix CVE-2021-21986?
To fix CVE-2021-21986, it is recommended to upgrade to the latest version of vCenter Server or VMware Cloud Foundation, as specified in the VMware Security Advisory.
Where can I find more information about CVE-2021-21986?
You can find more information about CVE-2021-21986 in the VMware Security Advisory and the Packet Storm Security website.