Critical vulnerability in NetUSB driver exposes millions of routers to hacking

Millions of routers and other embedded devices are affected by a serious vulnerability that could allow hackers to compromise them.

The vulnerability is located in a service called NetUSB, which lets devices connected over USB to a computer be shared with other machines on a local network or the Internet via IP (Internet Protocol). The shared devices can be printers, webcams, thumb drives, external hard disks and more.

NetUSB is implemented in Linux-based embedded systems, such as routers, as a kernel driver. The driver is developed by Taiwan-based KCodes Technology. Once enabled, it opens a server that listens on TCP port 20005 for connecting clients.

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