source: http://www.securityfocus.com/bid/24346/info

Microsoft Windows is prone to a remote denial-of-service vulnerability because it fails to properly handle maliciously crafted ICO files.

An attacker may exploit this issue by enticing victims into opening a malicious file.

Successful exploits will result in denial-of-service conditions on applications using the affected library. Applications such as Windows Explorer or Picture and Fax viewer have been identified as vulnerable. 

https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/bin-sploits/30160.ico.zip