CVE-2026-15487

Medium

Description

A vulnerability was found in TRENDnet TEW-821DAP 1.11B03. This impacts the function sub_41FBD0 of the file /goform/system_ntp of the component Firmware Update Handler. Performing a manipulation of the argument Hostname results in os command injection. The attack may be initiated remotely. The vendor explains: "We are unable to confirm the existence of the vulnerabilities for (...) TEW-821DAP (v1.0R) as these items have been EOL. " This vulnerability only affects products that are no longer supported by the maintainer.

SeverityMedium

CVSS6.3

Exploit probability—

ProductTrendnet Tew-821dap Firmware

PublishedJul 12, 2026

First seenJul 12, 2026

Weakness typeCWE-78OS command injection CWE-77Command injection

How to fix

Patches

github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI5.md

Affected products

Product	Affected versions	Fixed in
trendnet tew-821dap_firmware	1.11B03	—

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