Summaryinfo

A vulnerability described as critical has been identified in Trendnet TEW-657BRM 1.00.1. The impacted element is the function add_apcdb of the file /setup.cgi. The manipulation of the argument mac_pc_dba results in stack-based overflow. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is reported as CVE-2026-5349. The attack can be launched remotely. Moreover, an exploit is present. The vendor confirms, that "[t]he product in question (...) has been discontinued and end of life since June 23, 2011, that is more than 14 years ago. We no longer provide support for this product, so we are not able to confirm the vulnerabilities. We will make an announcement on our website's product support page and notify customers who registered their products with us."

Detailsinfo

A vulnerability, which was classified as critical, was found in Trendnet TEW-657BRM 1.00.1. Affected is the function add_apcdb of the file /setup.cgi. The manipulation of the argument mac_pc_dba with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-5349. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor confirms, that "[t]he product in question (...) has been discontinued and end of life since June 23, 2011, that is more than 14 years ago. We no longer provide support for this product, so we are not able to confirm the vulnerabilities. We will make an announcement on our website's product support page and notify customers who registered their products with us."

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Trendnet

Name

• TEW-657BRM

Version

• 1.00.1

License

• commercial

Support

• end of life

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Submitinfo

Accepted

• Submit #781563: TRENDnet TEW-657BRM 1.00.1 Buffer Overflow (by panda_0x1)

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