CVE-2026-7606

LOW

TRENDnet TEW-821DAP Firmware Update new_gui_update_firmware data authenticity

Title source: cna

Description

A weakness has been identified in TRENDnet TEW-821DAP 1.12B01. This issue affects the function find_hwid/new_gui_update_firmware of the component Firmware Update Handler. Executing a manipulation of the argument dest can lead to insufficient verification of data authenticity. The attack can be launched remotely. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.

References (4)

Core 4

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-360563 | TRENDnet TEW-821DAP Firmware Update new_gui_update_firmware data authenticity

https://vuldb.com/vuln/360563

Signature, Permissions Required signature permissions-required

VDB-360563 | CTI Indicators (IOB, IOC, IOA)

https://vuldb.com/vuln/360563/cti

Third Party Advisory third-party-advisory

Submit #806213 | Trendnet TEW-821DAP v1.12B01 CWE-287 Improper Authentication

https://vuldb.com/submit/806213

Patch patch

https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_Auth.md

View Patch ZIP pw:eip

Scores

CVSS v3 3.7

EPSS 0.0001

EPSS Percentile 2.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-345

Status published

Products (1)

TRENDnet/TEW-821DAP 1.12B01

Published May 02, 2026

Tracked Since May 02, 2026