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CVE-2025-60663: Stack Overflow Vulnerability in Tenda AC18 V15.03.05.19

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Overview

The CVE-2025-60663 vulnerability is a stack overflow issue identified in Tenda AC18 V15.03.05.19. This vulnerability impacts devices running the stated version, potentially leading to system compromise or data leakage. The severity of this vulnerability underlines the importance of immediate mitigation and patching.

Vulnerability Summary

CVE ID: CVE-2025-60663
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

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Product | Affected Versions

Tenda AC18 | V15.03.05.19

How the Exploit Works

The exploit works by inputting a maliciously crafted wanMTU parameter into the fromAdvSetMacMtuWan function of the Tenda AC18’s system. This causes a stack overflow, which can lead to arbitrary code execution, potentially allowing an attacker to compromise the system and leak sensitive information.

Conceptual Example Code

The following is a conceptual example of a malicious payload that might be used to exploit this vulnerability. Note that this is a hypothetical scenario and not the actual exploit code.

POST /fromAdvSetMacMtuWan HTTP/1.1
Host: target-device-ip
Content-Type: application/json
{ "wanMTU": "maliciously_long_string_to_trigger_stack_overflow" }

In the above example, the “wanMTU” value is intentionally larger than the buffer size that the fromAdvSetMacMtuWan function can handle, leading to a stack overflow.

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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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