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Tenda AC9 Stack Overflow Vulnerability in WAN MTU Parameter Leading to Remote Code Execution

Vulnerability

A stack overflow vulnerability has been identified in the Tenda AC9 router, specifically in version 1.0 V15.03.05.14_multi. The issue arises in the wanMTU parameter of the /goform/AdvSetMacMtuWan endpoint, allowing for remote arbitrary code execution.

Impact

Exploitation of this vulnerability allows for arbitrary code execution on the affected device.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
0.3
impact
7.5
exploitability
9.1
remediation
0.0
relevance
0.0
threat
6.6
urgency
2.9
incentive
9.2

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