CVE-2026-45542 ESF-IDF: Heap buffer overflow in protocomm Security2 over Bluetooth

ESF-IDF is the Espressif Internet of Things IOT Development Framework. In versions 5.2.6, 5.3.5, 5.4.4, 5.5.4, and 6.0, a heap buffer overflow exists in the Security Scheme 2 SRP6a session-setup path of the protocomm component. The first-phase handler handlesessioncommand0 in...

CVE-2026-45542

ESF-IDF (Espressif IoT Development Framework) versions 5.2.6, 5.3.5, 5.4.4, 5.5.4, and 6.0 suffer a heap buffer overflow in protocomm Security Scheme 2 (SRP6a) during session setup. The handle_session_command0() path copies a client-provided SRP6a username field into a smaller destination buffer,...