CVE-2026-3975 HIGH

CVE-2026-3975: Tenda W3 POST Parameter WifiMacFilterGet formWifiMacFilterGet stack-based overflow

Vendor Tenda
Product W3
Weakness CWE-121
Published March 12, 2026
Last update March 12, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security flaw has been discovered in Tenda W3 1.0.0.3(2204). This issue affects the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet of the component POST Parameter Handler. Performing a manipulation of the argument wl_radio results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

Key dates

02Disclosure timeline

March 12, 2026 CVE published
March 12, 2026 Record updated