Microsoft has released December 2020 security updates.  A remote attacker could exploit some of these vulnerabilities to take control of an affected system.  Microsoft has released updates to address these vulnerabilities.

For details, please refer to:

https://us-cert.cisa.gov/ncas/current-activity/2020/12/08/microsoft-releases-december-2020-security-updates

https://msrc.microsoft.com/update-guide/releaseNote/2020-Dec

https://support.microsoft.com/en-us/help/20201208/security-update-deployment-information-december-8-2020