Tenda AC6 Stack-Based Buffer Overflow Vulnerability in POST Request Handler

Vulnerability

A stack-based buffer overflow vulnerability has been identified in the Tenda AC6 router, specifically in the version 15.03.05.16. The issue arises in the 'formQuickIndex' function within the POST request handler, where the 'PPPOEPassword' parameter can be manipulated, leading to the overflow. This vulnerability can be exploited remotely, and a public exploit is available.

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.

Added: Mar 27, 2026, 5:22 PM
Updated: Mar 27, 2026, 5:22 PM

Vulnerability Rating

Custom Algorithm
spread
5.7
impact
7.5
exploitability
8.5
remediation
0.0
relevance
4.8
threat
6.4
urgency
2.9
incentive
8.3

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