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CVE-2025-57215: Stack Overflow Vulnerability in Tenda AC10 v4.0 Firmware

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Overview

A notable cybersecurity threat has been identified in the Tenda AC10 v4.0 firmware v16.03.10.20. The firmware was discovered to have a stack overflow vulnerability, exploitable via the function get_parentControl_list_Info. This vulnerability affects all users and networks utilizing this specific firmware version, potentially leading to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-57215
Severity: High (7.5 CVSS score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

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Product | Affected Versions

Tenda AC10 v4.0 Firmware | v16.03.10.20

How the Exploit Works

The vulnerability resides in the get_parentControl_list_Info function of the Tenda AC10 v4.0 firmware v16.03.10.20. An attacker can exploit this vulnerability by sending a specially crafted packet to the targeted system. This oversized packet would trigger a stack overflow in the function, causing the system to crash or execute arbitrary code, leading to potential system compromise or data leakage.

Conceptual Example Code

Given the nature of this vulnerability, a potential exploitation could occur in the form of a HTTP request as illustrated below:

POST /get_parentControl_list_Info HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "[INSERT OVERFLOW PAYLOAD HERE]" }

The “malicious_payload” would contain an oversized data string designed to trigger the stack overflow in the get_parentControl_list_Info function.

Mitigation

Users and network administrators are advised to apply the vendor-supplied patch to address this vulnerability. In the absence of a patch, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as temporary mitigation, configured to detect and block attempts to exploit this vulnerability.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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