JAIOTlink C492A-W6 4.8.30.57701411 Hard-coded Credentials via anyka_ipc

JAIOTlink C492A-W6 Wi-Fi IP cameras running firmware 4.8.30.57701411 contain a hard-coded credentials vulnerability that allows network-adjacent attackers to gain unauthorized access by using the default admin username with an empty password accepted by the anyka_ipc HTTP service on port 80. Attackers can authenticate with these hardcoded credentials to access camera snapshots, video streams, network configuration, and factory-level API endpoints including the SetMAC command injection surface.