How severe is CVE-2016-6553?

CVE-2016-6553 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-6553 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6553?

CVE-2016-6553 affects Nuuo Nt-4040 Titan Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-6553?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-6553 published?

CVE-2016-6553 was published on 2018-07-13 and last updated on 2026-06-17.

CVE-2016-6553

CVE-2016-6553 is a critical-severity vulnerability in Nuuo Nt-4040 Titan Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-255.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Nuuo Nt-4040 Titan Firmware
Published: 2018-07-13
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2016-6553?: CVE-2016-6553 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-6553 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6553?: CVE-2016-6553 affects Nuuo Nt-4040 Titan Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-6553?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-6553 published?: CVE-2016-6553 was published on 2018-07-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:nuuo:nt-4040_titan_firmware:nt-4040_01.07.0000.0015_1120:*:*:*:*:*:*:*

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