The zero-day flaw affects a wide range of versions of the popular browser, from IE6 to IE11, but experts at FireEye, observed the attack is targeting IE9 through IE11. Microsoft has assigned to the flaw the code CVE-2014-1776 and issued a specific security advisory. The attack will not work without the presence of Adobe Flash, this means that disabling the Flash plugin within IE will prevent the exploit from functioning. The vulnerability exists in the way that Internet Explorer accesses an object in memory that has been deleted or has not been properly allocated.”]
Source: http://securityaffairs.co/wordpress/24403/cyber-crime/fireeye-new-zero-day-ie.html