Per the link below – “VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8”.
Official VMware link: https://www.vmware.com/security/advisories/VMSA-2021-0020.html
Lookup your vCenter version here: https://kb.vmware.com/s/article/2143838
VMware Blog further explaining the issue: https://blogs.vmware.com/vsphere/2021/09/vmsa-2021-0020-what-you-need-to-know.html
VMware Blog post above is probably the best way to get educated around this vulnerability.
If you need further assistance or help, please contact our VMware Solution Experts below to schedule your VMware Health Check.
Z7 Solutions Support Team