The Microsoft (1) JScript 5.8 and 9 and (2) VBScript 5.7 and 5.8 engines, as used in Internet Explorer 9 through 11 and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability."
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-086
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-084
http://www.securitytracker.com/id/1036283