Trendnet TEW-657BRM Buffer Overflow

Stack-based buffer overflow in Trendnet TEW-657BRM 1.00.1 wireless router allows authenticated remote attackers to achieve code execution via the update_pcdb function in /setup.cgi by manipulating the mac_pc_dba parameter. This vulnerability affects a product discontinued since June 2011 (14+ years end-of-life) with no vendor support or patches available. Publicly available exploit code exists, elevating immediate risk for organizations still operating legacy deployments. CVSS 7.4 with low attack complexity and proof-of-concept availability make this a practical exploitation target despite requiring low-privilege authentication.

Stack-based buffer overflow in Trendnet TEW-657BRM router firmware 1.00.1 allows authenticated remote attackers to achieve arbitrary code execution via the mac_pc_dba parameter in /setup.cgi's add_apcdb function. The product was discontinued in 2011 and receives no vendor support. A public exploit exists on GitHub, significantly lowering the barrier for exploitation against unpatched devices still deployed in production environments.