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CVE-2015-7283

21
FAUCET Score

CVE-2015-7283 describes a critical vulnerability in ZyXEL NBG-418N routers with firmware 1.00(AADZ.3)C0, where the web administration interface uses a default "1234" password for the "admin" account. This allows remote attackers to gain full administrative control over the device if they can access the local area network. The vulnerability carries a high CVSS score of 8.1 due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no known public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness of the issue.

Impacted Technologies

VendorProductVersion(s)CPE
1.00\(aadz.3\)c0CPE matchmatch criteria
cpe:2.3:o:zyxel:nbg-418n_firmware:1.00\(aadz.3\)c0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.72%
Probability of exploitation in next 30 days
EPSS Percentile
88.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0372 is in the 49th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 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/330000
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/78819
securitytracker.com / id/1034554