Ricoh SP C250DN 1.05 devices have a fixed password. FTP service credential were found to be hardcoded within the printer firmware. This would allow to an attacker to access and read information stored on the shared FTP folders.
sp_c252sf_firmware
CVE-2019-14310
Ricoh SP C250DN 1.05 devices allow denial of service (issue 2 of 3). Unauthenticated crafted packets to the IPP service will cause a vulnerable device to crash. A memory corruption has been identified in the way of how the embedded device parsed the IPP packets