Buffer overflow in FlashGet (formerly JetCar) FTP 1.9 allows remote FTP servers to execute arbitrary code via a long response to the PWD command.
https://www.exploit-db.com/exploits/6256
https://www.exploit-db.com/exploits/6248
https://www.exploit-db.com/exploits/6240
https://exchange.xforce.ibmcloud.com/vulnerabilities/44443
http://www.vupen.com/english/advisories/2008/2381