The Microsoft (1) VBScript 5.7 and 5.8 and (2) JScript 5.7 and 5.8 engines, as used in Internet Explorer 8 through 11 and other products, allow remote attackers to execute arbitrary code via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability."
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-126
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-124
http://www.zerodayinitiative.com/advisories/ZDI-15-597
http://www.zerodayinitiative.com/advisories/ZDI-15-595
http://www.zerodayinitiative.com/advisories/ZDI-15-594
http://www.zerodayinitiative.com/advisories/ZDI-15-593
http://www.zerodayinitiative.com/advisories/ZDI-15-592
http://www.zerodayinitiative.com/advisories/ZDI-15-591