Hey there, the Internet Storm Center recently extended their Rest API with some features for Microsoft Patch Data. So where there is a REST API, there’s an opportunity for a PowerShell Script. The Get-IscMSSecBulletinInfo can be found here: https://github.com/alexverboon/posh/blob/master/Security/Get-IscMSSecBulletinInfo.ps1
Cheers
/Alex