We have SCCM 2012 R2 installed in our environment, I can execute a WMI query to get information about patches on a given computer like this:
$updates = Get-WmiObject -Class CCM_UpdateStatus -Namespace ROOT\ccm\SoftwareUpdates\UpdatesStore -ComputerName $Computer
This gives me all kinds of information about the patches including the Article, Bulletin, Installed Status, Patch Title, Product ID, etc. One of the missing items is when the patch was issued or released by Microsoft. Is there a query I can make with the information I have about the patch to get the release date from some other source?