Stack Overflow in Tenda AX-3 Causes Denial of Service

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: MITRE

Description

Tenda AX-3 v16.03.12.10_CN was discovered to contain a stack overflow in the mac2 parameter of the fromAdvSetMacMtuWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

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Meta Information

Published

2026-01-13

Last Modified

2026-01-13

Generated

2026-07-06

AI Q&A

2026-01-14

EPSS Evaluated

2026-07-05

NVD

CVE-2025-71023

EUVD

EUVD-2026-2083

Affected Vendors & Products

Vendor	Product	Version / Range
tenda	ax-3	16.03.12.10_cn

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

Executive Summary

This vulnerability is a stack overflow in the mac2 parameter of the fromAdvSetMacMtuWan function in Tenda AX-3 v16.03.12.10_CN. It occurs when an attacker sends a specially crafted request that causes the function to overflow the stack, leading to a Denial of Service (DoS) condition.

Impact Analysis

The vulnerability can cause a Denial of Service (DoS) on the affected device, meaning the device may crash or become unresponsive when processing a maliciously crafted request exploiting the stack overflow.

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