Fuzzing characteristic value leads to Device crash
It was identified Fuzzing char value last 3 bytes of the watch was getting crashed after 5 minutes it restarts, Bluetooth doesn’t work and doesn’t show in the network, and attacker can crash the watch and make unusable.
Fastrack Reflex 2.0 Activity Tracker
17 Nov 2020 reported to the vendor
30th June 2021 No response from the vendor and moving forward to public disclosure.