Kyocera 3830 (aka FS-3830N) printers have a back door that allows remote attackers to read and alter configuration settings via strings that begin with !R!SIOP0, as demonstrated using (1) a connection to to TCP port 9100 or (2) the UNIX lp command.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Fs-3830n | Kyocera | * | * |