Overview
A critical vulnerability, identified as CVE-2025-7092, has been discovered in Belkin F9K1122 1.00.33. This vulnerability has been classified as severe due to its potential for system compromise or data leakage. The security flaw lies in the function formWlanSetupWPS of the file /goform/formWlanSetupWPS of the component webs and can be exploited remotely. The exploit has been disclosed publicly, increasing the risk of potential attacks. The vendor has been notified but has not provided any response to this issue.
Vulnerability Summary
CVE ID: CVE-2025-7092
Severity: Critical (CVSS: 8.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Belkin F9K1122 | 1.00.33
How the Exploit Works
The exploit manipulation involves the argument wps_enrolee_pin/webpage leading to a stack-based buffer overflow. This occurs when an attacker sends an oversized, specially crafted payload to the target system that exceeds the buffer’s boundary and overwrites adjacent memory. The overflow could allow an attacker to execute arbitrary code or disrupt the normal operation of the system.
Conceptual Example Code
While the actual code to exploit this vulnerability has been withheld, the following conceptual HTTP request illustrates a similar scenario:
POST /goform/formWlanSetupWPS HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
wps_enrolee_pin=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...In the above example, “AAAAAAAA…” represents an oversized payload that, when processed by the target system, would lead to a buffer overflow.
Mitigation
Until a patch is provided by the vendor, users are advised to employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation against potential attacks. These systems can detect and block malicious payloads that attempt to exploit this vulnerability.