
Network equipment giant Cisco Systems Inc. warned its customers of a vulnerability that could allow hackers to take control of some of its products.
The problem involves a default username and password that are wired into the devices' software and can't be deactivated without a software update, according to a Cisco security advisory released Wednesday.
"Any user who logs in using this username has complete control of the device," the advisory said. "One can add new users or modify details of the existing users, and change the device's configuration."
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