Overview
Recently, a critical vulnerability dubbed CVE-2025-7598 has been discovered in Tenda AX1803 1.0.0.1. This vulnerability pertains to the function formSetWifiMacFilterCfg of the file /goform/setWifiFilterCfg and can lead to a stack-based buffer overflow. This vulnerability poses a significant threat, especially considering it can be exploited remotely and has been publicly disclosed, increasing the likelihood of potential attacks.
This vulnerability matters as a successful exploit can have devastating impacts, including potential system compromise or data leakage. Device owners and users who fail to address this vulnerability are at high risk, emphasizing the importance of immediate mitigation.
Vulnerability Summary
CVE ID: CVE-2025-7598
Severity: Critical (CVSS: 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
Tenda AX1803 | 1.0.0.1
How the Exploit Works
The vulnerability lies within the function formSetWifiMacFilterCfg of the file /goform/setWifiFilterCfg. A threat actor can manipulate the argument deviceList to cause a stack-based buffer overflow. This overflow occurs when more data is put into a fixed-length buffer than it can handle, which can corrupt data, crash the program, or lead to the execution of malicious code. Since this vulnerability can be exploited remotely, it poses a significant risk to devices running the affected version of Tenda AX1803.
Conceptual Example Code
Below is a
conceptual
example of how the vulnerability might be exploited. This is a sample HTTP request that sends a malicious payload to the vulnerable endpoint.
POST /goform/setWifiFilterCfg HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
deviceList=abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz...In the above example, the `deviceList` parameter is filled with an excessive amount of data, causing a buffer overflow.
Mitigation Guidance
To mitigate this vulnerability, users are urged to apply the vendor patch as soon as it becomes available. As a temporary mitigation, users could also deploy a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and potentially block attempts to exploit this vulnerability. However, these are only temporary solutions and can not replace the need for the official vendor patch.