Microsoft Internet Explorer 8 through 11 does not properly restrict file installation and registry-key creation, which allows remote attackers to bypass the Mandatory Integrity Control protection mechanism via a crafted web site, aka "Internet Explorer Elevation of Privilege Vulnerability."
https://exchange.xforce.ibmcloud.com/vulnerabilities/90756
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-010
http://www.securitytracker.com/id/1029741
http://www.securityfocus.com/bid/65392