https://support.microsoft.com/en-us/help/4093836/summary-of-intel-microcode-updates
Great news! Microsoft has taken another step in fighting the spectre 2 vulnerability and has issued more microcode updates, this time including the CPU types Haswell and Broadwell.
These updates need to be downloaded and installed manually, they will not come automatically!
WSUS admins need to import these manually, too.