This security update resolves several reported vulnerabilities in Internet Explorer. The most severe of these vulnerabilities could allow remote code execution if a user views a specially crafted webpage in Internet Explorer. To learn more about these vulnerabilities, see Microsoft Security Bulletin MS16-144.
Additionally, this security update includes several nonsecurity-related fixes for Internet Explorer.
Install this security update (3203621) if you are running Windows Vista or Windows Server 2008.
If you are running Internet Explorer 11 on Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2, install the December 2016 Security Only Quality Update for Windows 8.1 and Windows Server 2012 R2.
If you are running Internet Explorer 11 on Windows 7 or Windows Server 2008 R2, install the December 2016 Security Only Quality Update for Windows 7 SP1 and Windows Server 2008 R2 SP1.
If you are running Internet Explorer 10 on Windows Server 2012, install the December 2016 Security Only Quality Update for Windows Server 2012.
Additionally, see the following articles for information about the Windows 10, Windows 10 Version 1511, and Windows 10 Version 1607 cumulative updates:
Cumulative update for Windows 10 Version 1607 and Windows Server 2016.
Cumulative update for Windows 10 Version 1511: December 13, 2016.
Cumulative update for Windows 10: December 13, 2016.
Additionally, this security update includes several nonsecurity-related fixes for Internet Explorer.
Install this security update (3203621) if you are running Windows Vista or Windows Server 2008.
If you are running Internet Explorer 11 on Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2, install the December 2016 Security Only Quality Update for Windows 8.1 and Windows Server 2012 R2.
If you are running Internet Explorer 11 on Windows 7 or Windows Server 2008 R2, install the December 2016 Security Only Quality Update for Windows 7 SP1 and Windows Server 2008 R2 SP1.
If you are running Internet Explorer 10 on Windows Server 2012, install the December 2016 Security Only Quality Update for Windows Server 2012.
Additionally, see the following articles for information about the Windows 10, Windows 10 Version 1511, and Windows 10 Version 1607 cumulative updates:
Cumulative update for Windows 10 Version 1607 and Windows Server 2016.
Cumulative update for Windows 10 Version 1511: December 13, 2016.
Cumulative update for Windows 10: December 13, 2016.