Anyone using ESX 3.5 listen up – this effects you!!
I cannot stress this enough.Â If you do not apply this patch before June 1st 2011, you will be forever out of luck in applying ANY patches after that. Plan accordingly gentlemen.
To continue patching ESX 3.5 hosts, patch ESX350-201012410-BG needs to be applied BEFORE June 1, 2011. This patch updates the secure key.
Knowledgebase Article https://kb.vmware.com/kb/1030001 Critical Impact: VMware ESX 3.5, Patch ESX350-201012410-BG:
If there any updates on this, the KB will be updated.