Tenda FH451 Stack-Based Buffer Overflow Vulnerability

Vulnerability

A critical stack-based buffer overflow vulnerability has been identified in the Tenda FH451 router, specifically in version 1.0.0.9. The issue arises in the 'fromqossetting' function within the '/goform/qossetting' file, where manipulation of the 'page' parameter allows for remote exploitation.

Impact

Exploitation of this vulnerability leads to a stack-based buffer overflow, which can commonly result in arbitrary code execution or causing the device to crash.

Reproduction

To reproduce this vulnerability, send a request to the '/goform/qossetting' endpoint with a crafted 'page' parameter that exceeds the buffer limit. This will trigger the stack-based buffer overflow condition.

Added: Jul 19, 2025, 9:17 PM
Updated: Jul 19, 2025, 9:17 PM

Vulnerability Rating

Custom Algorithm
spread
0.3
impact
7.5
exploitability
6.2
remediation
0.0
relevance
0.3
threat
6.4
urgency
2.9
incentive
0.8

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