From U.S. Department of Homeland Security:

National Cyber Awareness System:

Microsoft Releases January 2018 Security Updates
01/09/2018 04:07 PM EST

Original release date: January 09, 2018

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

US-CERT encourages users and administrators to review Microsoft's January 2018 Security Update Summary and Deployment Information and apply the necessary updates.