CVE-2025-11942: 70mai X200 Auth Bypass Vulnerability

CVE-2025-11942 Overview

A critical authentication bypass vulnerability has been identified in the 70mai X200 dashcam firmware up to version 20251010. The flaw exists within the device pairing functionality, allowing attackers to bypass authentication mechanisms without proper credentials. This vulnerability can be exploited remotely over the network, potentially granting unauthorized access to the dashcam's features and stored data.

Critical Impact

Attackers can remotely bypass device pairing authentication on 70mai X200 dashcams, potentially gaining unauthorized access to video footage, device settings, and connected vehicle data.

Affected Products

• 70mai X200 Firmware (up to version 20251010)
• 70mai X200 Hardware Device
• 70mai Dashcam Omni X200

Discovery Timeline

• October 19, 2025 - CVE-2025-11942 published to NVD
• November 17, 2025 - Last updated in NVD database

Technical Details for CVE-2025-11942

Vulnerability Analysis

This vulnerability is classified as CWE-287 (Improper Authentication), affecting the pairing component of the 70mai X200 dashcam. The device fails to properly validate authentication credentials during the pairing process, allowing unauthorized users to establish connections with the device without completing the required authentication handshake.

The vulnerability has a network-based attack vector, meaning an attacker does not need physical access to the device to exploit this flaw. The exploitation has been documented and publicly disclosed, with technical details available in the GitHub Bypass Technique Guide. The vendor was contacted about this disclosure but did not respond.

Root Cause

The root cause of this vulnerability stems from missing authentication validation in the pairing function of the 70mai X200 firmware. When processing pairing requests, the device does not properly verify that the connecting client has been authorized, allowing the authentication step to be bypassed entirely. This represents a fundamental flaw in the device's security architecture where authentication checks are either absent or improperly implemented.

Attack Vector

The attack can be launched remotely over the network against 70mai X200 dashcams running vulnerable firmware versions. An attacker within network range of the dashcam (typically via Wi-Fi) can manipulate the pairing process to bypass authentication. The exploitation technique has been publicly documented, though no user interaction is required from the victim. Once paired, the attacker could potentially access recorded footage, modify device settings, or use the device as a pivot point for further attacks.

The vulnerability exploitation mechanism involves manipulating the pairing handshake to skip authentication verification. For detailed technical information on the bypass technique, refer to the GitHub Bypass Technique Guide and VulDB #329021 Detailed Analysis.

Detection Methods for CVE-2025-11942

Indicators of Compromise

• Unexpected device pairing events or notifications on the 70mai mobile application
• Unknown devices appearing in the dashcam's paired device list
• Unusual network traffic patterns to/from the dashcam's Wi-Fi interface
• Unauthorized access or modifications to dashcam settings or recordings

Detection Strategies

• Monitor network traffic for anomalous pairing requests to 70mai X200 devices
• Implement network segmentation to isolate IoT devices like dashcams from critical systems
• Review paired device lists regularly for unauthorized connections
• Enable logging on network infrastructure to capture connection attempts to dashcam devices

Monitoring Recommendations

• Deploy network monitoring solutions to detect unauthorized pairing attempts
• Regularly audit connected devices on the dashcam's network interface
• Configure alerts for new device pairing events through the 70mai mobile application
• Monitor for firmware update availability from 70mai

How to Mitigate CVE-2025-11942

Immediate Actions Required

• Disable the dashcam's Wi-Fi connectivity when not actively in use
• Remove the dashcam from accessible networks and isolate it on a separate network segment
• Regularly check and clear unauthorized paired devices from the dashcam
• Monitor 70mai's official channels for firmware updates addressing this vulnerability
• Consider physical security measures to limit access to the vehicle containing the dashcam

Patch Information

At the time of this publication, the vendor (70mai) has not released a patch for this vulnerability. The vendor was contacted about this disclosure but did not respond in any way. Users should monitor official 70mai channels and the VulDB Submission Report #672520 for updates regarding security patches.

Workarounds

• Disable Wi-Fi on the 70mai X200 when not needed for data transfer
• Use the dashcam in standalone mode without network connectivity
• Implement network-level controls to restrict access to the dashcam's wireless interface
• Consider using a dedicated mobile hotspot with strong authentication for dashcam connectivity
• Physically disconnect the dashcam when the vehicle is parked in untrusted locations

# Network isolation example for IoT devices
# Create a separate VLAN for dashcam and IoT devices
# On your router/firewall, configure:

# Block dashcam from accessing internet except for firmware updates
iptables -A FORWARD -i dashcam_vlan -o wan -j DROP
iptables -A FORWARD -i dashcam_vlan -d firmware.70mai.com -j ACCEPT

# Restrict access to dashcam from other network segments
iptables -A FORWARD -i lan -o dashcam_vlan -j DROP