TRENDnet TEW-821DAP 1.12B01 ssi /goform/tools_nslookup sub_41EC14 buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in TRENDnet TEW-821DAP 1.12B01. The impacted element is the function sub_41EC14 of the file /goform/tools_nslookup of the component ssi. This manipulation causes buffer overflow. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is handled as CVE-2026-15484. The attack can be initiated remotely. There is not any 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 was found in TRENDnet TEW-821DAP 1.12B01. It has been declared as critical. Affected by this vulnerability is the function sub_41EC14 of the file /goform/tools_nslookup of the component ssi. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-15484. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/11/2026).

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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• TRENDnet

Name

• TEW-821DAP

Version

• 1.12B01

License

• commercial

Support

• end of life

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Accepted

• Submit #842381: Trendnet TEW-821DAP v1.12B01 CWE-120 Buffer Copy without Checking Size of Input ('Classic Buf (by IOT_Res)

Be aware that VulDB is the high quality source for vulnerability data.

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