Overview
The CVE-2025-7094 vulnerability is a critical flaw identified in Belkin F9K1122 version 1.00.33. This issue pertains to the function formBSSetSitesurvey of the file /goform/formBSSetSitesurvey of the webs component. Affected devices are susceptible to a stack-based buffer overflow attack, which can be triggered remotely by manipulating the argument submit-url-ok. This vulnerability is of significant concern due to its potential to compromise entire systems or lead to data leaks, particularly given that the exploit has been publicly disclosed with no response from the vendor.
Vulnerability Summary
CVE ID: CVE-2025-7094
Severity: Critical (CVSS score 8.8)
Attack Vector: Remote
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 originates from the formBSSetSitesurvey function in the webs component of Belkin F9K1122. The exploit works by manipulating the argument submit-url-ok, which leads to a stack-based buffer overflow. This overflow can potentially overwrite necessary data and control the execution flow of the software, thereby granting unauthorized access or control. This exploit can be triggered remotely, without any user interaction or prior privileges, increasing the risk and potential impact.
Conceptual Example Code
Here’s a conceptual example of how an HTTP request exploiting this vulnerability might look:
POST /goform/formBSSetSitesurvey HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
submit-url-ok=%sIn the above example, `%s` would represent a string of characters exceeding the buffer’s capacity, leading to overflow.
Please note that the above example is purely conceptual and may not represent an actual successful exploit. It’s provided for illustrative purposes to help understand the nature of the vulnerability.
Mitigation Guidance
As the vendor has not yet provided a patch or responded to the vulnerability disclosure, it’s recommended to implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These systems can help detect and block exploit attempts. Users are advised to monitor their systems closely for any unusual activity and to apply vendor patches as soon as they become available.