CVE-2026-3976

HIGH

Tenda W3 1.0.0.3(2204) - Buffer Overflow

Title source: llm

Description

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.

References (7)

[Third Party Advisory] https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formWifiMacFilterSet-go-buffer-overflow

[Third Party Advisory] https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-w3-formWifiMacFilterSet-index-buffer-overflow

[Permissions Required, VDB Entry] https://vuldb.com/?ctiid.350411

[Permissions Required, VDB Entry] https://vuldb.com/?id.350411

[Permissions Required, VDB Entry] https://vuldb.com/?submit.769179

[Permissions Required, VDB Entry] https://vuldb.com/?submit.769180

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

Scores

CVSS v3 8.8

EPSS 0.0009

EPSS Percentile 25.8%

Attack Vector NETWORK

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

Details

CWE

CWE-121 CWE-119

Status published

Products (1)

Tenda/W3 < 1.0.0.3(2204)

Published Mar 12, 2026

Tracked Since Mar 12, 2026