Below are key resources documenting this recent monthly Microsoft Patch Tuesday release

In their largest patch cycle in recent memory, Microsoft released security patches for 88 CVEs along with four advisories. The updates cover Internet Explorer, Edge, Windows, ChakraCore, Microsoft Office and Microsoft Office Services and Web Apps, Skype for Business and Microsoft Lync, Exchange Server, Azure, and SQL Server. Of these 88 CVEs, 21 are rated Critical, 66 are rated Important, and one is rated Moderate in severity.  Four of these bugs are listed as publicly known, but none are listed as under active attack at the time of release.