Vulnerability Note VU#259548

Netmaster cable modem information leakage vulnerability

Original Release date: 04 Sep 2014 | Last revised: 04 Sep 2014


The Netmaster CBW700N wireless cable modem enables remote SNMP public access by default


CWE-200 - Information Exposure

The Netmaster CBW700N wireless cable modem running software version 81.447.392110.729.024 was found to expose sensitive information such as username, password, and wifi keys via the SNMP public community string.


A remote unauthenticated attacker may be able to retrieve the username, password, and other sensitive information about the device.


The CERT/CC is currently unaware of a practical solution to this problem.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
NetmasterAffected17 Jul 201415 Aug 2014
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
Temporal 4.3 E:F/RL:U/RC:UC
Environmental 4.5 CDP:LM/TD:M/CR:ND/IR:ND/AR:ND



Thanks to Deral Heiland of Rapid7, Inc. for reporting this vulnerability.

This document was written by Chris King.

Other Information

  • CVE IDs: CVE-2014-4862
  • Date Public: 21 Aug 2014
  • Date First Published: 04 Sep 2014
  • Date Last Updated: 04 Sep 2014
  • Document Revision: 15


If you have feedback, comments, or additional information about this vulnerability, please send us email.