Security Alert: Critical Vulnerability Found in Popular Router Models

Security Alert: Critical Vulnerability Found in Popular Router Models

A high-severity security flaw has been identified in several series of router firmware, specifically those utilizing the AiCloud cloud-based feature.

The vulnerability allows unauthorized remote users to bypass security measures and take control of the device.

The Vulnerability: CVE-2025-2492

The flaw is classified as an Authentication Bypass and Command Injection vulnerability. It carries a critical severity rating of 9.2 out of 10.

• How it works: An attacker can send a specifically “crafted request” to the router over the internet.

• The Impact: If successful, the attacker can execute system commands with Administrator privileges. This gives them full control over the router, allowing them to intercept network traffic, change DNS settings, or access files stored on connected USB drives.

Affected Systems

The vulnerability impacts routers running the following firmware versions:

• 3.0.0.4_382 series

• 3.0.0.4_386 series

• 3.0.0.4_388 series

• 3.0.0.6_102 series

These firmware generations are common in a wide range of consumer and professional routers sold throughout North America, including popular Wi-Fi 6 (AX) and Wi-Fi 5 (AC) models.

Recommended Actions for Users

Security experts recommend taking the following steps immediately to protect your home or business network:

1. Update Your Firmware: Log in to your router’s web interface (typically by entering your router’s IP address in a browser) and check for the latest system updates. Manufacturers have already begun rolling out patches to address this specific flaw.

2. Disable AiCloud: If you do not actively use the AiCloud feature for remote file access, it is safest to turn it off entirely. This disables the vulnerable service and removes the point of entry for attackers.

3. Review Remote Access Settings: Ensure that “Web Access from WAN” or “Remote Management” is disabled unless absolutely necessary.

4. Strengthen Passwords: Update your router’s admin login password. Use a complex password of at least 10 characters, combining uppercase letters, numbers, and symbols.

If your router has reached its End-of-Life (EoL) and no longer receives updates, security professionals strongly advise replacing the hardware, as these older devices will remain permanently vulnerable to this exploit.