Vulnerability Note VU#326395

Nuuo NT-4040 firmware contains insecure default credentials

Original Release date: 20 Oct 2016 | Last revised: 13 Dec 2016


Nuuo NT-4040 Titan, firmware NT-4040_01.07.0000.0015_1120, uses default credentials


CWE-255: Credentials Management - CVE-2016-6553

Nuuo NT-4040 Titan, firmware NT-4040_01.07.0000.0015_1120, uses non-random default credentials of: admin:admin and localdisplay:111111 . A remote network attacker can gain privileged access to a vulnerable device.


A remote attacker can take complete control of a device using default admin credentials.


Apply an update
Nuuo has released an update to address the issue. Please see the vendor information.

Restrict access and use strong passwords

As a general good security practice, only allow trusted hosts to connect to the device. Use of strong, unique passwords can help reduce the efficacy of brute force password guessing attacks.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
NUUOAffected-13 Dec 2016
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C
Temporal 6.2 E:F/RL:W/RC:ND
Environmental 4.7 CDP:N/TD:M/CR:ND/IR:ND/AR:ND



Thanks to Ory Segal and Ezra Caltum for reporting this vulnerability.

This document was written by Trent Novelly.

Other Information

  • CVE IDs: CVE-2016-6553
  • Date Public: 20 Oct 2016
  • Date First Published: 20 Oct 2016
  • Date Last Updated: 13 Dec 2016
  • Document Revision: 15


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