Denial of Service Vulnerability in Espressif ESP32 Bluetooth Controller

CVE-2020-13594

What is CVE-2020-13594?

A flaw in the Bluetooth Low Energy (BLE) controller implementation of Espressif's ESP-IDF version 4.2 and earlier permits malicious actors within radio range to exploit the channel map field of the connection request packet. By sending a crafted packet, an attacker can trigger a denial of service condition, resulting in a crash of the affected devices. This vulnerability highlights the importance of secure packet validation in BLE communications to prevent service disruptions.

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