Buffer overflow in Hitachi Groupmax Mobile Option for Mobile-Phone 07-00 through 07-30, 5 for i-mode 05-11 through 05-23, and 6 for EZweb 06-00 through 06-04 allows remote attackers to execute arbitrary code via unspecified vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33953
http://www.vupen.com/english/advisories/2007/1562
http://www.securityfocus.com/bid/23690
http://www.hitachi-support.com/security_e/vuls_e/HS07-009_e/index-e.html