CVE-2026-3803

HIGH

Tenda i3 1.0.0.6(2204) - Buffer Overflow

Title source: llm

Description

A vulnerability was identified in Tenda i3 1.0.0.6(2204). This affects the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet. The manipulation of the argument index leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

References (5)

[Third Party Advisory] https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-i3-formWifiMacFilterGet-index-buffer-overflow

View Writeup ZIP pw:eip

[Permissions Required, VDB Entry] https://vuldb.com/?ctiid.349770

[Permissions Required, VDB Entry] https://vuldb.com/?id.349770

[Permissions Required, VDB Entry] https://vuldb.com/?submit.768984

[Various Sources] https://www.tenda.com.cn/

Scores

CVSS v3 8.8

EPSS 0.0005

EPSS Percentile 14.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-119 CWE-121

Status published

Affected Products (1)

tenda/i3_firmware

Timeline

Published Mar 09, 2026

Tracked Since Mar 09, 2026