Insufficient input validation vulnerability in NETGEAR JR6150 (AC750 WiFi Router 802.11ac Dual Band Gigabit released in 2014) allows administrators connected to the local network to make unauthorized modification of router software and functionality. NETGEAR JR6150 reached End-of-Support status in 2018 and is no longer receiving security updates. NETGEAR strongly recommends replacing these devices with newer NETGEAR models to ensure continued security support and updates. This vulnerability has been identified through firmware emulation in a controlled research environment and has not been verified on production hardware.