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ESP32 Undocumented Bluetooth Commands: Clearing the Air
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Espressif has already provided a formal response to the recently published claims about ESP32 Bluetooth controller serving as a potential “backdoor” or having “undocumented features” that can cause security concerns. There is no security risk because the application already has full privileged access to the memory and registers as well as ability to send/receive Bluetooth packets irrespective of the availability of these HCI commands. For a small number of Bluetooth HCI serial use-cases, we can mitigate the issue by disabling debug commands and we will provide an update on that front soon.
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