No exploitation reported

CVE-2018-17900

No exploitation reported by the sources we read.

Published2018-10-12
WeaknessCWE-522

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2018-10-1214:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-17900?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-17900?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Yokogawa fcj firmwareversion to verify

Branch	Affected	Fixed in	Source
—	≤ r4.10	no fix published	NVD

Yokogawa fcn-100 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	≤ r4.10	no fix published	NVD

Yokogawa fcn-500 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	≤ r4.10	no fix published	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-18-151-03 CISA8 known affected
Yokogawa STARDOM Controllers (Update A)
STARDOM Controller FCN-RTU: (R4.10 and prior) · STARDOM Controller FCJ: (R4.10 and prior) · STARDOM Controller FCN-500: (R4.02 and prior) · +5 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-18-151-03 · 8 productsYokogawa has recommended users upgrade the FCN/FCJ software to Version R4.20 or later and reports that some vulnerabilities are remediated in that version. Yokogawa has determined the fix for the memory exhaustion vulnerability is provided by that revision. For the remaining vulnerabilities of insu…
Mitigation from the vendor CISA ICSA-18-151-03 · 8 productsYokogawa recommends users with questions related to this report (or on obtaining the updates) please utilize the product inquiry contact details
Mitigation from the vendor CISA ICSA-18-151-03 · 8 productsYokogawa's Security Advisory Report, YSAR-18-0004: Vulnerability of hardcoded password in STARDOM controllers, and YSAR-18-0007: Vulnerabilities in STARDOM controllers and other Yokogawa security reports are available
Mitigation from the vendor CISA ICSA-18-151-03 · 8 productsAdditionally, for questions related to these reports, please contact

Advisories and patches

web-material3.yokogawa.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.05read 2026-10-23
CNAweakness (CWE)CWE-522read 2026-10-23
NVDweakness (CWE)CWE-522read 2026-10-23
FIRST EPSSEPSS score1.9 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2018-10-12
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-17900?

Is CVE-2018-17900 actively exploited?

Active exploitation of CVE-2018-17900 has not been confirmed. Its EPSS score was 1.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-17900?

CVE-2018-17900 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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