Overview
CVE-2025-10392 is a critical vulnerability discovered in Mercury KM08-708H GiGA WiFi Wave2 version 1.1.14. The vulnerability lies within an unidentified function of the HTTP Header Handler component. It is triggered by manipulating the ‘Host’ argument, resulting in a stack-based buffer overflow. This vulnerability is critical due to its potential for remote exploitation, which could lead to a system compromise or data leakage. Given the severity of the vulnerability and its potential impact on users, it’s imperative that organizations take immediate steps to mitigate this risk.
Vulnerability Summary
CVE ID: CVE-2025-10392
Severity: Critical (CVSS: 9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
Mercury KM08-708H GiGA WiFi Wave2 | 1.1.14
How the Exploit Works
The exploit takes advantage of a vulnerability in the HTTP Header Handler of Mercury KM08-708H GiGA WiFi Wave2. Specifically, it manipulates the ‘Host’ argument in a way that causes a stack-based buffer overflow. This overflow can potentially overwrite crucial system data or function pointers, which could result in arbitrary code execution. This could allow an attacker to remotely take over the system or cause data leakage.
Conceptual Example Code
A conceptual example of exploiting this vulnerability might look like this:
GET / HTTP/1.1
Host: target.example.com { A*60000 }In this example, the ‘Host’ field is overloaded with a string of ‘A’ characters. If the length of this string exceeds the buffer size allocated for the ‘Host’ argument, it will cause a buffer overflow. In a real-world scenario, an attacker could replace the ‘A’ characters with malicious code to execute a successful exploit.
Mitigation Guidance
The best mitigation strategy is to apply the vendor patch as soon as it becomes available. Until then, organizations can use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary mitigation option. These tools can help detect and block attempts to exploit this vulnerability. Additionally, organizations should monitor their network traffic for any unusual activities or attempts to exploit this vulnerability.
