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CVE-2016-6553

32
FAUCET Score

CVE-2016-6553 details a critical vulnerability in Nuuo NT-4040 Titan firmware NT-4040_01.07.0000.0015_1120, where devices ship with easily guessable, non-random default credentials (admin:admin and localdisplay:111111). This allows an unauthenticated remote attacker to gain privileged access, leading to complete compromise of the device (CVSS 9.8 Critical). While not listed in CISA KEV and lacking public exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness. Despite the lack of active exploitation evidence, the high FAUCET Risk Score of 93/100 underscores the severe risk posed by this easily exploitable weakness.

Impacted Technologies

VendorProductVersion(s)CPE
nt-4040_01.07.0000.0015_1120CPE matchmatch criteria
cpe:2.3:o:nuuo:nt-4040_titan_firmware:nt-4040_01.07.0000.0015_1120:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.88%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0288 is in the 76th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.cert.org / vuls/id/326395
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/93807
Third Party AdvisoryVDB Entry