CVE-2026-3972 HIGH

CVE-2026-3972: Tenda W3 HTTP setcfm formSetCfm 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 Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

A vulnerability was found in Tenda W3 1.0.0.3(2204). Affected by this issue is the function formSetCfm of the file /goform/setcfm of the component HTTP Handler. The manipulation of the argument funcpara1 results in stack-based buffer overflow. The attack can only be performed from the local network. The exploit has been made public and could be used.

Key dates

02Disclosure timeline

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