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CVE-2017-18373

30
FAUCET Score

CVE-2017-18373 describes a critical vulnerability in the Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603 router, specifically affecting devices distributed by TrueOnline. The vulnerability stems from the presence of three default user accounts, including two hardcoded service accounts with easily guessable or repetitive passwords, allowing unauthorized access to the web interface. With a CVSS score of 8.8 (HIGH), this flaw enables authenticated command injection, leading to potential compromise of router settings and full system control. Despite its high severity and potential for significant impact (CWE-798), there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.3.8.0CPE matchmatch criteria
cpe:2.3:o:billion:5200w-t_firmware:7.3.8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.38%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0538 is in the 91st percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

raw.githubusercontent.com / pedrib/PoC/master/advisories/zyxel_trueonline.txt
ExploitThird Party Advisory
seclists.org / fulldisclosure/2017/Jan/40
ExploitMailing ListThird Party Advisory
ssd-disclosure.com / index.php/archives/2910
ExploitTechnical DescriptionThird Party Advisory