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Vulnerability DatabaseCVE-2025-39757
CVE-2025-39757:
Linux Kernel vulnerability analysis and mitigation
Overview
A stack-based buffer overflow vulnerability (CVE-2024-39757) was discovered in the wireless.cgi AddMac() functionality of Wavlink AC3000 M33A8.V5030.210505. The vulnerability was disclosed on January 14, 2025, and affects the Wavlink AC3000 router's firmware version M33A8.V5030.210505 (NVD, Talos).
Technical details
The vulnerability exists in the wireless.cgi binary's AddMac function, where a buffer overflow can occur when processing HTTP requests. The issue stems from insufficient length checking on the addMac POST parameter, which allows an attacker to pass a buffer greater than 0xc20 bytes and overwrite the function's return address. The vulnerability has been assigned a CVSS v3.1 base score of 7.2 (HIGH) by NVD and 9.1 (CRITICAL) by Talos, with the vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H (Talos).
Impact
Successful exploitation of this vulnerability can lead to arbitrary command execution on the affected device. The impact is rated as high for confidentiality, integrity, and availability, indicating that a successful attack could result in complete compromise of the system (NVD).
Additional resources
Source: This report was generated using AI
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