Overview
The cybersecurity landscape is continually evolving, and new vulnerabilities are discovered every day. One such critical vulnerability, CVE-2025-7463, has been found in the Tenda FH1201 1.2.0.14. This vulnerability affects the HTTP POST Request Handler in the function formWrlsafeset of the file /goform/AdvSetWrlsafeset. The manipulation of the argument mit_ssid can lead to a buffer overflow, posing severe threats to the security of the system.
The vulnerability is of significant concern as it can be exploited remotely, suggesting that any malicious actor with knowledge of this exploit can compromise the system. Its disclosure to the public further increases the risk of exploitation, making it paramount for users to understand and apply the necessary mitigation steps.
Vulnerability Summary
CVE ID: CVE-2025-7463
Severity: Critical (8.8 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Tenda FH1201 | 1.2.0.14
How the Exploit Works
The vulnerability arises from a flaw in the function formWrlsafeset of the file /goform/AdvSetWrlsafeset. The function does not adequately validate the mit_ssid argument, which can be manipulated by an attacker to cause a buffer overflow. This overflow can corrupt data, crash the system, or allow the attacker to execute arbitrary code, leading to a potential system compromise.
Conceptual Example Code
The attacker can exploit this vulnerability by sending a malicious HTTP POST request with an oversized mit_ssid argument, causing a buffer overflow. A conceptual example of this might look as follows:
POST /goform/AdvSetWrlsafeset HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
mit_ssid=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... (continued until buffer overflow is triggered)This example is purely conceptual and demonstrates the type of request an attacker might make.
How to Mitigate CVE-2025-7463
Mitigation of this vulnerability requires applying a patch provided by the vendor. If a patch is not immediately available, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by blocking or alerting on malicious traffic that attempts to exploit this vulnerability. Regularly updating and patching systems is a key defense against such vulnerabilities.