CVE-2026-3976 HIGH

CVE-2026-3976: Tenda W3 POST Parameter WifiMacFilterSet formWifiMacFilterSet stack-based overflow

Vendor Tenda
Product W3
Weakness CWE-121
Published March 12, 2026
Last update March 12, 2026
View on NVD All CVEs

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 weakness has been identified in Tenda W3 1.0.0.3(2204). Impacted is the function formWifiMacFilterSet of the file /goform/WifiMacFilterSet of the component POST Parameter Handler. Executing a manipulation of the argument index/GO can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

Key dates

02Disclosure timeline

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