ESP32-DevKitC V4 (ESP32-DEVKITC-32D)

Security Grade

Calculator v1

   Brand: Espressif (Parent: Espressif Systems (Shanghai) Co., Ltd.)

   Category: Development board • Model / Gen: V4 ESP32-DEVKITC-32D

   Release Date: 2016-09-06 • Status: In sale

   Classification Date: 2026-10-26 • Official Website

Security Evaluation

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	—	Published research demonstrated fault-injection attacks against ESP32 flash encryption (e.g. CVE-2019-17391); requires physical access. Rare for this board class.
Known vulnerabilities	Very common	🔗 Proof	The ESP32 platform has multiple published CVEs over its lifetime (flash encryption, eFuse read protection, Wi-Fi/Bluetooth stacks); some are hardware-level and not fixable on this silicon revision.
Prior attacks	None	—	No documented in-the-wild attacks specifically targeting this dev board; published research proof-of-concepts (fault injection) exist for the ESP32 platform.
Updatability	Very common	🔗 Proof	ESP-IDF is actively maintained with frequent releases and OTA update support; security fixes are published for ESP32.
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	—	As shipped, no authentication to other systems; mutual TLS and other schemes are supported by ESP-IDF but implementation depends on application firmware.
Communications	Encrypted with up-to-date encryption	🔗 Proof	TLS 1.2/1.3 via mbedTLS and WPA2/WPA3 Wi-Fi security are supported by ESP-IDF; actual use depends on the flashed application.
Storage	Encrypted with up-to-date encryption	🔗 Proof	Flash encryption (AES-256) supported; enabled via firmware configuration
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Account management	Absent	—	No built-in user account management on a bare development board.
Authentication	Absent	—	No built-in user authentication mechanism; entirely application-dependent.
Brute-force protection	Absent	—	No built-in brute-force protection; application-dependent.
Event logging	Absent	—	No default access-event logging; logging facilities exist in ESP-IDF but depend on application firmware.
Passwords	Default/Common/Easy to guess	—	No enforced password policy; determined by application firmware
Category Score	Score: 3 / 3

Property	Details
Operating System & App	FreeRTOS (ESP-IDF) (Companion App: )
Hardware (CPU / GPU)	CPU: Xtensa LX6 dual-core @ up to 240 MHz (ESP32-WROOM-32D module) • GPU:
Memory & Storage	Memory: 520 KB SRAM • Storage: 4 MB SPI flash
Power, Battery & Charging	Battery: • Power: 5V via micro-USB or 5V/3.3V header pins • Charging:
Display & Camera	Display: • Camera:
Sound & Connectivity	Sound: • Connectivity: Wi-Fi 802.11 b/g/n (2.4 GHz), Bluetooth 4.2 BR/EDR + BLE, micro-USB
Physical (Dimensions & Mass)	Dimensions: approx. 55 x 28 x 13 mm • Mass: approx. 15 g