Scanning vCenter Server Appliance

Hi All,
Apologies if this is covered elsewhere but I can’t seem to find a definitive answer.

I can successfully scan our ESXi hosts which are picked up and identified, along with any extant vulnerabilities, however I can’t find any detail on how to perform a vulnerability scan (credentialled or otherwise) of a vCenter Server Appliance.

All of my VCSAs are variously identified by IVM as ASUS routers or Linux OPENWRT OS systems