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Nt 4040 Titan FirmwareOperating system · Nuuo

CVE-2016-6553

CRITICAL · 9.8 CVSS v3.0 Published 2018-07-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The Nuuo NT-4040 Titan surveillance device firmware (NT-4040_01.07.0000.0015_1120) ships with hardcoded, non-random default credentials for two administrative accounts: 'admin:admin' and 'localdisplay:111111'. A remote unauthenticated attacker with network access to the device can leverage these credentials to gain privileged administrative access.

MitigationImmediately change all default credentials on affected devices to strong, unique passwords. Disable unused default accounts and implement a credential management policy to prevent future use of default credentials.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Nt 4040 Titan FirmwareOperating system
Affected:= nt-4040_01.07.0000.0015_1120

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify device model and firmware version
    Access the device's web interface or check system information via SNMP or the device's administration console. Look for the model identifier 'NT-4040 Titan' and firmware version '01.07.0000.0015'.
    Affected if The device is a Nuuo NT-4040 Titan running firmware version 01.07.0000.0015_1120.
  2. Verify default administrative accounts exist
    Access the user management or account settings page in the device web interface. Look for the presence of accounts with usernames 'admin' and 'localdisplay'.
    Affected if The default accounts 'admin' and 'localdisplay' are present in the user database.
  3. Test default credentials authentication
    Attempt to authenticate to the device web interface or administrative telnet/SSH service using the credential pairs 'admin:admin' and 'localdisplay:111111'.
    Affected if Either default credential pair successfully authenticates to the device.
  4. Check for credential modification timestamps
    In the device user management interface, examine the last password change date or password modification history for the 'admin' and 'localdisplay' accounts.
    Affected if Passwords have never been changed from their default values or the modification timestamp is absent.

A defender is affected if they operate a Nuuo NT-4040 Titan device running firmware 01.07.0000.0015 where the default accounts 'admin' or 'localdisplay' retain their factory default passwords and remain accessible on the network.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Immediately change all default credentials on affected devices to strong, unique passwords. Disable unused default accounts and implement a credential management policy to prevent future use of default credentials.

Recommended fix Low confidence
  1. Immediately change the default admin password from 'admin' to a strong, unique password
  2. Change the default localdisplay password from '111111' to a strong, unique password
  3. If the device is exposed to the internet, restrict network access by implementing firewall rules or VPNs to limit exposure
  4. Contact Nuovo vendor support to inquire about firmware updates that address this vulnerability
  5. Verify no unauthorized access has occurred by reviewing device logs and user accounts

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Nt 4040 Titan Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2016-6553 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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