CVE-2017-18369: The Billion 5200W-T 1.02b.rc5.dt49 router distributed by TrueOnline has a command injection vulnerability in t

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CRITICAL 9.8REMOTEMITIGATE

CVE-2017-18369 is a critical-severity flaw (CVSS 9.8) affecting 5200w-t firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Billion 5200W-T 1.02b.rc5.dt49 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user. The vulnerability is in the adv_remotelog.asp page and can be exploited through the syslogServerAddr parameter.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	67.6% (top 1%)
CISA exploited list	No
Weakness	CWE-78
Published	2019-05-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: billion

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-05-02 17:29 UTCPublished CVE record published
2026-06-17 01:12 UTCUpdated Record last modified

billion 5200w-t firmware MITIGATE

Affected: 1.02b rc5.dt49

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.02b

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Metasploit: TrueOnline / Billion 5200W-T Router Unauthenticated Command Injection

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-18369?

5200w-t firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-18369 being exploited?

CVE-2017-18369 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-18369 affect?

CVE-2017-18369 affects 5200w-t firmware. Severity is critical (CVSS 9.8). The Billion 5200W-T 1.02b.rc5.dt49 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user. The vulnerability is in the adv_remotelo

How urgent is CVE-2017-18369?

Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

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References

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