Naked Security
A researcher has stumbled on a big security flaw affecting OpenWrt, an open source operating system used by millions of home and small business routers and embedded devices.
OpenWrt has become a popular Linux alternative to the stock software that vendors ship with home routers. Other examples of this type of router software include DD-WRT and Tomato.
It can used to replace the factory firmware on any router product with the correct hardware, for example, models from NetGear, Linksys, Zyxel and others.