Buffer overflow in FileZilla before 2.2.23 allows remote attackers to execute arbitrary commands via unknown attack vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26450
http://www.vupen.com/english/advisories/2006/1795
http://www.securityfocus.com/bid/17972
http://sourceforge.net/project/shownotes.php?release_id=416790