Cisco EPC3925 UPC Modem / Router Default Passphrase
Posted by deepcore on July 22, 2016 – 4:56 am
The default SSID and passphrase on the Cisco EPC3925 are derived from the MAC address and the DOCSIS serial number. Since the MAC address of the device is broadcasted via WiFi and the typical serial number is within the range 200.000.000 and 260.000.000, the default password can be brute-forced within minutes. Proof of concept included.
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