HOMEVULNERABILITIESCVE-2018-17900
CRITICAL

CVE-2018-17900

CWE-522Published: October 12, 2018· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Yokogawa STARDOM Controllers FCJ, FCN-100, FCN-RTU, FCN-500, All versions R4.10 and prior, The web application improperly protects credentials which could allow an attacker to obtain credentials for remote access to controllers.

NVD Source

Technical Analysis

CVE-2018-17900 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

yokogawa8 product(s)
fcj firmwarefcjfcn-100 firmwarefcn-100fcn-rtu firmwarefcn-rtufcn-500 firmwarefcn-500
Source: NVD CPE · 8 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-18-151-03
ADVISORYhttps://web-material3.yokogawa.com/YSAR-18-0007-E.pdf
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-18-151-03
ADVISORYhttps://web-material3.yokogawa.com/YSAR-18-0007-E.pdf

All References (4)

→
https://ics-cert.us-cert.gov/advisories/ICSA-18-151-03Third Party Advisory · US Government Resource
→
https://web-material3.yokogawa.com/YSAR-18-0007-E.pdfVendor Advisory
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-151-03Third Party Advisory · US Government Resource
→
https://web-material3.yokogawa.com/YSAR-18-0007-E.pdfVendor Advisory

Quick Facts

CVE IDCVE-2018-17900
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-522
CISA KEVNo
Affected1 vendor(s)
PublishedOct 12, 2018

Related CVEs (CWE-522)

CVE-2024-12799
10.0
CVE-2026-29128
10.0
CVE-2026-56843
9.9
CVE-2025-0867
9.9
CVE-2019-1384
9.9
CVE-2021-36783
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-17900 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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