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CVE-2025-9299: Remote Stack-Based Buffer Overflow Vulnerability in Tenda M3 1.0.0.12

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Overview

This blog post focuses on the CVE-2025-9299 vulnerability discovered in Tenda M3 version 1.0.0.12. This vulnerability is of particular concern due to its potential to be exploited remotely, leading to a stack-based buffer overflow. This is a significant security concern as it may result in a system compromise or data leakage. The potential impact is severe, and hence it is of utmost importance that network administrators and cybersecurity professionals stay updated and take necessary protective measures.

Vulnerability Summary

CVE ID: CVE-2025-9299
Severity: High – CVSS Score 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

Tenda M3 | 1.0.0.12

How the Exploit Works

The primary cause of this vulnerability is a flaw in the function formGetMasterPassengerAnalyseData of the file /goform/getMasterPassengerAnalyseData. The improper handling of the ‘Time’ argument leads to a stack-based buffer overflow. This overflow can be exploited by an attacker to execute arbitrary code or potentially gain unauthorized access to the system. Since this exploit can be initiated remotely, it elevates the risk and potential impact of the vulnerability.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. This example uses an HTTP POST request to the vulnerable endpoint with a malicious payload designed to trigger the buffer overflow:

POST /goform/getMasterPassengerAnalyseData HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "Time": "[Insert malicious payload here causing buffer overflow]" }

Mitigation and Prevention

The best way to protect your systems from this vulnerability is to apply the vendor-provided patch as soon as possible. If this patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These tools can help detect and block malicious attempts to exploit this vulnerability. Additionally, regular patch management and system audits are recommended to ensure the continued security of your systems.

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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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