Unspecified vulnerability in Microsoft Internet Explorer 8 on Windows 7 allows remote attackers to execute arbitrary code via unknown vectors triggered by clicking on a link, as demonstrated by Nils during a PWN2OWN competition at CanSecWest 2009.
https://exchange.xforce.ibmcloud.com/vulnerabilities/49389
http://www.securitytracker.com/id?1021880
http://www.securityfocus.com/bid/34182
http://www.h-online.com/security/Pwn2Own-2009-Safari-IE-8-and-Firefox-exploited--/news/112889
http://news.cnet.com/8301-1009_3-10199652-83.html
http://dvlabs.tippingpoint.com/blog/2009/03/20/pwn2own-day-2
http://dvlabs.tippingpoint.com/blog/2009/02/25/pwn2own-2009