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

The vulnerability of the File Transfer Protocol FTP implementation in the microprogrammed network devices Zyxel ATP, USG FLEX, and USG FLEX 50W/USG20W-VPN is related to the lack of measures taken to neutralize special elements used in the operating system commands. Exploiting this vulnerability...