Buffer overflow in Melange Chat System 1.10 allows remote attackers to cause a denial of service (chat server crash) and possibly execute arbitrary code via the msgText buffer in the chat_InterpretData function, as demonstrated via a long Nick (nickname) request.
https://exchange.xforce.ibmcloud.com/vulnerabilities/10939
http://www.idefense.com/application/poi/display?id=33&type=vulnerabilities&flashstatus=false