Specifically crafted payloads sent to the RFID reader could cause DoS of RFID reader. After the device is restarted, it gets back to fully working state.
2N has released an updated version 2.46 of 2N OS, where this vulnerability is mitigated. It is recommended that all customers update their devices to the latest 2N OS.
An exception is thrown from a function, but it is not caught.