Trendnet TEW-657BRM Command Injection Vulnerability in the Web Interface

Vulnerability

A command injection vulnerability has been identified in the Trendnet TEW-657BRM router, specifically in version 1.00.1. The issue arises in the web interface file '/setup.cgi', where the 'pcdb_list' parameter can be manipulated to inject and execute operating system commands. This vulnerability can be exploited remotely, and a public proof-of-concept exploit is available.

Impact

Exploitation of this vulnerability allows for arbitrary operating system command execution on the affected device.

Reproduction

To reproduce this vulnerability, send a POST request to '/setup.cgi' with the 'pcdb_list' parameter. Include a command injection payload, such as a command to list directory contents, redirected to a file.

Remediation

No known mitigation is available for this vulnerability.

Added: Apr 2, 2026, 7:16 PM
Updated: Apr 2, 2026, 7:16 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
7.5
exploitability
8.0
remediation
0.0
relevance
5.1
threat
6.4
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.