What is CVE-2016-6553?

CVE-2016-6553 is a critical-severity vulnerability in Nuuo Nt-4040 Titan, classified under CWE-255. CVSS score: 9.8/10. Published 2018-07-13.

How severe is CVE-2016-6553?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Nuuo Nt-4040 Titan

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.

Published 2018-07-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.028 (86.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.029 · newest: 0.028 · change: -0.000

Affected products

Nuuo Nt-4040 Titan — versions NT-4040_01.07.0000.0015_1120
Nuuo Nt-4040 Titan
Nuuo Nt-4040 Titan Firmware — versions nt-4040_01.07.0000.0015_1120

Weakness classification (CWE)

CWE-255

References

www.kb.cert.org/vuls/id/326395 (US Government Resource, Third Party Advisory, third-party-advisory)
www.securityfocus.com/bid/93807 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2016-6553?: CVE-2016-6553 is a critical-severity vulnerability in Nuuo Nt-4040 Titan, classified under CWE-255. CVSS score: 9.8/10. Published 2018-07-13.
How severe is CVE-2016-6553?: Critical severity. CVSS v3 base score is 9.8 out of 10.