Overview
The cybersecurity landscape has been hit with another critical vulnerability, this time affecting Belkin F9K1122 1.00.33. Labeled as CVE-2025-7093, this vulnerability has severe implications for system security and data integrity. This vulnerability, found in the function formSetLanguage of the file /goform/formSetLanguage, exploits a stack-based buffer overflow that can lead to system compromise or data leakage. The problem is further compounded by the fact that the exploit has been made publicly available and the vendor has yet to respond with a patch or solution.
Vulnerability Summary
CVE ID: CVE-2025-7093
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
Belkin F9K1122 | 1.00.33
How the Exploit Works
The vulnerability occurs due to an overflow condition within the formSetLanguage function of the /goform/formSetLanguage file. The issue lies in the improper verification of user-supplied data, which can result in a buffer overflow on the stack. An attacker can exploit this to execute arbitrary code on the system with elevated privileges. This can lead to a full compromise of the system or potential data leakage if exploited successfully.
Conceptual Example Code
The following is a conceptual example of how a malicious HTTP request exploiting this vulnerability might look:
POST /goform/formSetLanguage HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
webpage=%sIn this example, `%s` represents a malicious payload designed to overflow the buffer and execute arbitrary code.
Mitigation Guidance
Users are advised to apply the vendor’s patch as soon as it becomes available. In the absence of a patch, users can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. These systems can detect and block attempts to exploit this vulnerability. However, this is only a temporary solution and does not fully address the underlying vulnerability.