**UNSUPPORTED WHEN ASSIGNED** The improper authentication vulnerability in the Zyxel P-6101C ADSL modem firmware version P-6101CSA6AP_20140331 could allow an unauthenticated attacker to read some device information via a crafted HTTP HEAD method.
https://gist.github.com/stevenyu113228/78e0169d2ff110e9a65539eb29660d25