It's January 2022 Patch Tuesday! Microsoft has released today security updates for all supported versions of Windows, including the brand new Windows 11!
If you're running Windows 10 version 21H2, you'll get KB5009543, bringing the build number to 19044.1466.
Today's Patch Tuesday includes fixes for six zero-day vulnerabilities and a total of 97 flaws. These updates fix 97 vulnerabilities with today's update, with nine classified as Critical and 88 as Important.
This month's Patch Tuesday includes fixes for six publicly disclosed zero-day vulnerabilities. The good news is that none of them have been actively exploited in attacks.
Microsoft classifies a vulnerability as a zero-day if it is publicly disclosed or actively exploited with no official fix available.