A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.

Detailed messages are displayed on the error
page. This information could be exploited by an attacker for other attacks.



The
affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to
R10.04

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00042.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Yokogawa Electric Corporation FAST/TOOLS unknown
Version Status Constraints
R9.01 affected ≤ R10.04

No data.

No data.

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Vendors Products
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Fast/tools Subscribe

Project Subscriptions

Vendors Products
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Fast/tools Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf cve-icon cve-icon
History

Mon, 09 Feb 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Yokogawa
Yokogawa fast/tools
Vendors & Products Yokogawa
Yokogawa fast/tools

Mon, 09 Feb 2026 04:30:00 +0000

Type Values Removed Values Added
Description A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. Detailed messages are displayed on the error page. This information could be exploited by an attacker for other attacks. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
Weaknesses CWE-209
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: YokogawaGroup

Published:

Updated: 2026-02-09T03:37:30.800Z

Reserved: 2025-12-05T05:04:18.581Z

Link: CVE-2025-66594

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-09T05:16:21.840

Modified: 2026-02-09T05:16:21.840

Link: CVE-2025-66594

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-09T10:39:27Z

Weaknesses