CVE-2025-27840

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esp32-cve-2025-27840-power-trace-experiment

esp32-cve-2025-27840-power-trace-experiment Firmware for getting a power trace of the behavior of the bluetooth module on the ESP32 when the ESP32 is sent the undocumented hci bluetooth commands CVE-2025-27840. When the ESP32 receives the commands, it toggles a GPIO pin to trigger the power trace...

CVE-2025-27840

Espressif ESP32 chips allow 29 hidden HCI commands, such as 0xFC02 Write memory...

CVE-2025-27840

CVE-2025-27840 concerns Espressif ESP32 family chips. The public materials describe 29 hidden HCI/debug commands (notably 0xFC02: Write memory) that are undocumented and could enable memory writes in affected devices. Espressif explicitly states these are internal debug commands not remotely acce...