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CVE-2025-50617: Buffer Overflow Vulnerability in Netis WF2880 v2.1.40207

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Overview

A significant vulnerability, CVE-2025-50617, has been identified in Netis WF2880 v2.1.40207. This vulnerability can be potentially exploited by attackers to crash the system and mount a Denial of Service (DoS) attack. Given the prevalent use of Netis WF2880, this issue is of considerable concern and needs immediate attention.

Vulnerability Summary

CVE ID: CVE-2025-50617
Severity: High (7.5 CVSS)
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

Netis WF2880 | v2.1.40207

How the Exploit Works

The vulnerability lies in the FUN_0046ed68 function of the cgitest.cgi file in Netis WF2880. A buffer overflow can be triggered by controlling the ‘wps_set’ value in the payload, leading to a system crash. This crash can then be leveraged by attackers to execute a Denial of Service (DoS) attack, potentially leading to data leakage or full system compromise.

Conceptual Example Code

The following is a conceptual HTTP request that could be used to exploit this vulnerability:

POST /cgitest.cgi HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "wps_set": "OVERFLOW VALUE" }

In the above code, ‘OVERFLOW VALUE’ would be replaced with a carefully crafted string that causes the buffer overflow, leading to system crash and potential further compromise.

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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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