Format string vulnerability in CellFactor Revolution 1.03 and earlier allows remote attackers to execute arbitrary code via format string specifiers in a malformed nickname.
https://exchange.xforce.ibmcloud.com/vulnerabilities/36506
http://www.vupen.com/english/advisories/2007/3109
http://www.securityfocus.com/bid/25625
http://securityreason.com/securityalert/3130