Microsoft has released important “Patch Tuesday” monthly security updates. These should applied promptly as some of these vulnerabilities have potential to be actively exploited in-the-wild later:

https://isc.sans.edu/forums/diary/Microsoft+February+2021+Patch+Tuesday/27080/

https://blog.talosintelligence.com/2021/02/microsoft-patch-tuesday-for-feb-2021.html

https://www.thezdi.com/blog/2021/2/9/the-february-2022-security-update-review

https://us-cert.cisa.gov/ncas/current-activity/2021/02/09/microsoft-releases-february-2021-security-updates

https://msrc.microsoft.com/update-guide/releaseNote/2021-Feb

https://patchtuesdaydashboard.com/https://portal.msrc.microsoft.com/en-us/security-guidance/summary

For February, Microsoft released patches for 56 CVEs covering Microsoft Windows components, .NET Framework, Azure IoT, Azure Kubernetes Service, Microsoft Edge for Android, Exchange Server, Office and Office Services and Web Apps, Skype for Business and Lync, and Windows Defender. Seven of these CVEs were submitted through the ZDI program. Of these 56 CVEs, 11 are listed as Critical, 43 are listed as Important, and two are listed as Moderate in severity. According to Microsoft, one bug is known to be actively exploited and six other bugs are listed as being publicly known at the time of release.