CVE-2026-7609 MEDIUM

CVE-2026-7609: TRENDnet TEW-821DAP Firmware Udpate diagnostic tools_diagnostic os command injection

Vendor Trendnet
Product TEW-821DAP
Weakness CWE-78
Published May 2, 2026
Last update May 4, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A flaw has been found in TRENDnet TEW-821DAP up to 1.12B01. The impacted element is the function tools_diagnostic of the file /tmp/diagnostic of the component Firmware Udpate. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used. 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.

Key dates

02Disclosure timeline

May 2, 2026 CVE published
May 4, 2026 Record updated