source: http://www.securityfocus.com/bid/29026/info

Call of Duty is prone to a denial-of-service vulnerability because the application fails to handle specially crafted commands.

An attacker can exploit this issue to crash the affected application, denying service to legitimate users.

Call of Duty 4 1.5 is vulnerable; other versions may also be affected. 

https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/31728-1.zip

https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/31728-2.zip