Microsoft Internet Explorer 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Microsoft Browser Memory Corruption Vulnerability," a different vulnerability than CVE-2015-6140, CVE-2015-6142, CVE-2015-6143, CVE-2015-6153, CVE-2015-6158, and CVE-2015-6160.
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-125
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-124
http://www.zerodayinitiative.com/advisories/ZDI-15-645