Researchers discovered what they're describing as a potential security issue that could affect a billion devices.

Researchers have found undocumented commands in a popular bluetooth chip which is inside over a billion devices worldwide. The secret commands are in the ESP32 chip, which is made by Espressif. The commands could allow attackers to spoof devices,

Undocumented commands in a popular Bluetooth chip could allow hackers to spoof devices and access data.

An undocumented command has been discovered in Espressif's ESP32 chips that could be exploited to the detriment of millions of users.

Researchers warn these commands could be exploited to manipulate memory, impersonate devices, and bypass security controls.

Tarlogic found hidden Bluetooth HCI commands in the ESP32 that could comprise its security by allowing read/write to the RAM and flash.

The ubiquitous ESP32 microchip made by Chinese manufacturer Espressif and used by over 1 billion units as of 2023 contains undocumented commands that could be leveraged for attacks.

A hidden feature in a cheap and wildly popular Bluetooth chip used in at least a billion devices could lead to identity theft, security researchers have warned.