CVE-2007-1094
Microsoft Internet Explorer 7 allows remote attackers to cause a denial of service (NULL dereference and application crash) via JavaScript onUnload handlers that modify the structure of a document.
Date published : 2007-02-26
http://www.securityfocus.com/bid/22678
http://www.securityfocus.com/archive/1/461024/100/0/threaded