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CVE-2025-44893: High-Risk Stack Overflow Vulnerability in FW-WGS-804HPT

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Overview

A high-severity vulnerability has been identified in the FW-WGS-804HPT v1.305b241111, which could potentially lead to system compromise or data leakage. This vulnerability, assigned the identifier CVE-2025-44893, relates to a stack overflow condition that can be triggered via the ruleNamekey parameter in the web_acl_mgmt_Rules_Apply_post function. Given the CVSS Severity Score of 9.8, it is critical for users and administrators to apply the necessary patches to mitigate the risk.

Vulnerability Summary

CVE ID: CVE-2025-44893
Severity: Critical (CVSS: 9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System Compromise, Data Leakage

Affected Products

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Product | Affected Versions

FW-WGS-804HPT | v1.305b241111

How the Exploit Works

The vulnerability lies in the ruleNamekey parameter in the web_acl_mgmt_Rules_Apply_post function. An attacker can send specially crafted input to this parameter, causing a stack overflow condition. This can lead to unintended execution of malicious instructions, resulting in either a system compromise or data leakage.

Conceptual Example Code

Below is a
conceptual
example of how the vulnerability might be exploited. This is a hypothetical HTTP POST request to the vulnerable endpoint:

POST /web_acl_mgmt_Rules_Apply_post HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "ruleNamekey": "A"*1000 }

In this example, “A”*1000 denotes a string of 1000 ‘A’ characters. This large input could potentially overrun the buffer, causing a stack overflow.

Mitigation Guidance

The recommended mitigation is to apply the vendor’s patch as soon as it becomes available. In the meantime, or in scenarios where patching is not immediately feasible, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These tools can monitor and block potentially malicious traffic, reducing the risk of successful exploitation.
Maintaining a strong security posture requires consistent vigilance and proactive measures. Users should ensure automatic updates are enabled where possible and regularly check for new security patches.

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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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