Vmware · Vmware Vcenter Server · CVE-2021-21991
**Name of the Vulnerable Software and Affected Versions**
VMware vCenter Server (affected versions not specified)
**Description**
The issue is related to insufficient validation of session tokens in VMware vCenter Server, allowing a malicious actor with non-administrative user access on the vCenter Server host to exploit this issue and escalate privileges to Administrator on the vSphere Client (HTML5) or vCenter Server vSphere Web Client (FLEX/Flash).
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.