CVE-2026-3971 HIGH

CVE-2026-3971: Tenda i3 wifiSSIDset formwrlSSIDset stack-based overflow

Vendor Tenda
Product i3
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 vulnerability has been found in Tenda i3 1.0.0.6(2204). Affected by this vulnerability is the function formwrlSSIDset of the file /goform/wifiSSIDset. The manipulation of the argument index/GO leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

Key dates

02Disclosure timeline

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