VMware published a Security Advisory for the VMware Tools on Windows.
VMware Tools 12.0.0 Download
On my ESXi the VM's the VMware Tools are currently running Version 11.3.5
I've extracted the "windows.iso" and renamed it to "WMwareTools12_Windows.iso"
Then uploadet it to the Datastore
Attached it to the VM
And started the setup64.exe