In brief: If you haven't done this already, stop what you're doing and install the latest Patch Tuesday update. Then come back and read about how important this really is—no less than 87 security flaws ranging from important to critical have been fixed in several Microsoft products. That includes fixes for the infamous PrintNightmare and an Office zero-day vulnerability that's being actively exploited in the wild.
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 ...
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