https://www.bleepingcomputer.com/news/microsoft/microsoft-december-2021-patch-tuesday-fixes-6-zero-days-67-flaws/

Today is Microsoft's December 2021 Patch Tuesday, and with it comes fixes for six zero-day vulnerabilities and a total of 67 flaws. These updates include a fix for an actively exploited Windows Installer vulnerability used in malware distribution campaigns.

Microsoft has fixed 55 vulnerabilities (not including Microsoft Edge) with today's update, with seven classified as Critical and 60 as Important.