Overview
A critical vulnerability has been identified in Netgear WNCE3001 1.0.0.50, posing severe risks to the security and integrity of systems operating under this version. This vulnerability, designated as CVE-2025-6565, exploits the http_d function of the HTTP POST Request Handler, specifically through the manipulation of the Host argument, leading to a stack-based buffer overflow. Considering the wide usage of Netgear products, this vulnerability has the potential to impact a significant number of systems, making its proper understanding and mitigation paramount for maintaining secure operational environments.
Vulnerability Summary
CVE ID: CVE-2025-6565
Severity: Critical, CVSS Score: 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
Netgear WNCE3001 | 1.0.0.50
How the Exploit Works
The exploit works by sending a crafted HTTP POST request to the target system, manipulating the Host argument in the request. This improper handling of the Host argument leads to a stack-based buffer overflow in the http_d function. This type of vulnerability allows an attacker to overwrite the contents of the memory with their own data, potentially leading to arbitrary code execution and system compromise.
Conceptual Example Code
An example of how an attacker might exploit this vulnerability is by sending a malicious HTTP POST request like the one below:
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA..." }In this conceptual example, the “malicious_payload” is made up of a string of ‘A’s. This is a common technique used in buffer overflow attacks to overwrite the memory with a known data pattern, allowing the attacker to control the execution flow of the program.
Mitigation Guidance
To mitigate this vulnerability, it is recommended to apply the vendor patch as soon as it becomes available. In the interim, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. However, these are not permanent solutions and can only offer limited protection. It’s crucial to keep systems updated and apply patches promptly to prevent possible system compromise or data leakage.