Thank you for the update.
Before patching VCSA please take a back of the vCenter and take a non-memory, non-quiesced snapshot of the vCenter VM(and PSC if it is external), before implementing any change.
Ensure that you have the login credential for the ESXi host which has the vCenter VM.
Then you can download the VCSA patch which should end with FP.iso from my.vmware.com > selecting VC and the version.
Upload the file to a datastore and map it to the VCSA VM through CD / DVD Drive option.
Patch the VCSA from CLI.
Run the following commands
software-packages stage –-iso
software-packages list –-staged
software-packages install –-staged
Reboot the VCSA VM.
This should patch the VCSA
Arun Kumar
Install / Upgrade