The vulnerability of the NCR S1 dispenser controller’s microprogramming software lies in the lack of protection for the memory writing mechanism. This allows a intruder to execute arbitrary code or lower the version of the device’s firmware.

The vulnerability of the microprogram code of the NCR S1 dispenser controller is related to insufficient protection of the memory writing mechanism. Exploiting this vulnerability could allow an attacker to execute arbitrary code or downgrade the device’s firmware to a outdated version with known...