VMSA-2021-0010: vCenter Server Security Advisory
On Tuesday, May 25, 2021, VMware released VMware Security Advisory VMSA-2021-0010 affecting vCenter Server versions 6.5/6.7/7.0.
Workaround: VMware KB 83829: https://kb.vmware.com/s/article/83829
VMware Blog: VMSA-20210-0010: What you Need to Know
VMware Communities: https://via.vmw.com/vmsa-2021-0010-communities
The key information to share is that IMMEDIATE ACTION IS REQUIRED. Apply the vCenter patch version now, or apply the workaround (and understand the impact to functionality) if you cannot patch immediately.
VMware has released a very detailed blog and FAQ for this VMSA, which should help clarify questions that are sure to arise. These resources are linked above.