CVE-2025-7597 in AX1803
Summary
by MITRE • 07/14/2025
A vulnerability classified as critical has been found in Tenda AX1803 1.0.0.1. Affected is the function formSetMacFilterCfg of the file /goform/setMacFilterCfg. The manipulation of the argument deviceList leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 07/14/2025
This critical vulnerability exists in the Tenda AX1803 wireless router firmware version 1.0.0.1 and affects the formSetMacFilterCfg function within the /goform/setMacFilterCfg file. The flaw represents a stack-based buffer overflow condition that occurs when processing the deviceList argument, creating a significant security risk for affected systems. The vulnerability's classification as critical indicates its potential for severe impact on system integrity and network security.
The technical implementation of this vulnerability stems from improper input validation within the router's web interface management functions. When an attacker sends a specially crafted request containing an oversized deviceList parameter to the setMacFilterCfg endpoint, the application fails to properly bounds-check the input data before copying it into a fixed-size stack buffer. This fundamental flaw in memory management allows for arbitrary code execution through controlled buffer overflow exploitation. The vulnerability's remote attack vector means that malicious actors can exploit this weakness without requiring physical access to the device or local network presence.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass complete system compromise and potential network infiltration. Successful exploitation could enable attackers to execute arbitrary code with root privileges, effectively granting them full control over the affected router. This compromised device could then serve as a foothold for broader network attacks, including man-in-the-middle operations, DNS hijacking, or as a pivot point for attacking other devices within the local network. The public disclosure of exploitation techniques further amplifies the risk, as it provides threat actors with ready-made methods for leveraging this vulnerability.
Security professionals should immediately implement network segmentation measures to isolate affected devices and monitor for suspicious network activity. The primary mitigation strategy involves applying firmware updates from Tenda once available, as the vendor should provide patches addressing the buffer overflow condition. Network administrators should also consider implementing web application firewalls to filter malicious requests targeting the vulnerable /goform/setMacFilterCfg endpoint and establish strict input validation policies for all router management interfaces. Organizations should conduct thorough vulnerability assessments to identify all instances of this router model within their networks and prioritize remediation efforts accordingly. This vulnerability aligns with CWE-121 stack-based buffer overflow and represents a significant concern under the ATT&CK framework's privilege escalation and remote code execution tactics.