Microsoft Office Web Components Active-X related buffer overflow proof of concept exploit. The author tested on Internet Explorer 7.0.5730.13 on Windows XP SP3 with owc10.dll and owc11.dll installed. Written in Python.
ECMAScript in IE5, IE6, IE7, IE8, Netscape, Firefox, Safari, Opera, Konqueror, Seamonkey, Wii, PS3, iPhone, iPod, Nokia, Siemens and various other browsers allows for a denial of service condition.