CVE-2026-4042 HIGH

CVE-2026-4042: Tenda i12 WifiMacFilterGet formWifiMacFilterGet stack-based overflow

Vendor Tenda
Product i12
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 weakness has been identified in Tenda i12 1.0.0.6(2204). The affected element is the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet. This manipulation of the argument index causes stack-based buffer overflow. The attack may be initiated 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