The vulnerability of the File Transfer Protocol (FTP) implementation in the microprogrammed networking devices of ZyXEL USG FLEX, USG FLEX 50(W)/USG20(W)-VPN, USG FLEX H, and ATP allows a perpetrator to execute arbitrary commands.

The vulnerability of the File Transfer Protocol FTP implementation in microprogrammed network devices such as ZyXEL USG FLEX, USG FLEX 50W/USG20W-VPN, USG FLEX H, and ATP lies in the lack of measures to neutralize special elements used in operating system commands during the loading of binary...