This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the "onload" event handler. When a page is loaded, the browser will execute any code associated with the "onload" event handler. By using a specially crafted HTML page, an attacker can cause the browser to execute arbitrary code in the context of the currently logged in user.