Reports of undocumented Bluetooth HCI commands from ESP32 chips are doing the rounds. They open up a security flaw. ... defines the communication between the Bluetooth IC and the host system, ...

Their earliest draft of an ESP32 module, called the ESP3212, has been scrapped and replaced with the ESP-32S, with a pinout that’s identical to Espressif’s WROOM32, according to [Angus Gratton ...