CVE-2026-3972

HIGH

Tenda W3 1.0.0.3(2204) - Buffer Overflow

Title source: llm
STIX 2.1

Description

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.

References (5)

Core 5
Core References
Various Sources product
https://www.tenda.com.cn/
Permissions Required, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.350407
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.350407
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.769172

Scores

CVSS v3 8.8
EPSS 0.0019
EPSS Percentile 40.3%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/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