Buffer overflow in Texas Imperial Software WFTPD Pro Server 3.23.1.1 allows remote authenticated users to execute arbitrary code or cause a denial of service (application crash) via crafted APPE commands that contain "/" (slash) or "\" (backslash) characters.
https://www.exploit-db.com/exploits/2734
https://exchange.xforce.ibmcloud.com/vulnerabilities/30079
http://www.securityfocus.com/bid/20942
http://www.securityfocus.com/archive/1/450851/100/0/threaded
http://securitytracker.com/id?1017173
http://securityreason.com/securityalert/1837