This month’s Patch Tuesday update may be light as a feather, but don’t let that fool you. Microsoft has included fixes for no less than 67 security vulnerabilities—87 if you count several fixes for holes in the Chromium-based Microsoft Edge. The flaws affect several Microsoft products, including Windows, Windows DNS, the Windows Subsystem for Linux, Visual Studio, Office, SharePoint Server, Edge, and Azure.
Most notably, the update fixes one zero-day Office flaw (CVE-2021-40444) that hackers are actively exploiting. News first broke about this a week ago, but Microsoft wasn’t able to release an out-of-band patch at the time.