CVE-2026-3976

HIGH

Tenda W3 1.0.0.3(2204) - Buffer Overflow

Title source: llm
STIX 2.1

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)

Core 7
Core References
Permissions Required, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.350411
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.350411
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.769179
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.769180
Various Sources product
https://www.tenda.com.cn/

Scores

CVSS v3 8.8
EPSS 0.0011
EPSS Percentile 29.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-121 CWE-787
Status published
Products (2)
Tenda/W3 1.0.0.3(2204)
tenda/w3_firmware 1.0.0.3\(2204\)
Published Mar 12, 2026
Tracked Since Mar 12, 2026