TRENDnet TEW-821DAP 1.11B03 Firmware Update /goform/system_ntp sub_41FBD0 Hostname os command injection

Summaryinfo

A vulnerability was found in TRENDnet TEW-821DAP 1.11B03 and classified as critical. Affected is the function sub_41FBD0 of the file /goform/system_ntp of the component Firmware Update Handler. Executing a manipulation of the argument Hostname can lead to os command injection. This vulnerability only affects products that are no longer supported by the maintainer. The identification of this vulnerability is CVE-2026-15487. The attack may be launched remotely. There is no exploit available. The vendor explains: "We are unable to confirm the existence of the vulnerabilities for (...) TEW-821DAP (v1.0R) as these items have been EOL. "

Detailsinfo

A vulnerability classified as critical was found in TRENDnet TEW-821DAP 1.11B03. This vulnerability affects the function sub_41FBD0 of the file /goform/system_ntp of the component Firmware Update Handler. The manipulation of the argument hostname with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability was named CVE-2026-15487. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/11/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The vendor explains: "We are unable to confirm the existence of the vulnerabilities for (...) TEW-821DAP (v1.0R) as these items have been EOL. "

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• TRENDnet

Name

• TEW-821DAP

Version

• 1.11B03

License

• commercial

Support

• end of life

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Accepted

• Submit #842385: Trendnet TEW-821DAP v1.11B03 CWE-78 Improper Neutralization of Special Elements used in an OS (by IOT_Res)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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