CVE-2026-71254 | debevv nanoMODBUS up to 1.23.0 Modbus Server nanomodbus.c handle_read_file_record out-of-bounds write

A vulnerability was found in debevv nanoMODBUS up to 1.23.0. It has been declared as critical. Impacted is the function handle_read_file_record of the file nanomodbus.c of the component Modbus Server. Executing a manipulation can lead to out-of-bounds write.

This vulnerability is tracked as CVE-2026-71254. The attack can be launched remotely. No exploit exists.