Microsoft Internet Explorer 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2014-4132 and CVE-2014-4138.
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-056
http://www.securitytracker.com/id/1031018