CVE-2025-66598 - Vulnerability Details - OpenCVE

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product supports old SSL/TLS versions, potentially allowing an attacker to decrypt communications with the web server. 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 Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

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.

No EPSS score available.

Key SSVC decision points have not yet been added.

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References

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

History

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. This product supports old SSL/TLS versions, potentially allowing an attacker to decrypt communications with the web server. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
Weaknesses		CWE-327
References		https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf
Metrics		cvssV4_0 `{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: YokogawaGroup

Published: 2026-02-09T03:26:46.511Z

Updated: 2026-02-09T03:26:46.511Z

Reserved: 2025-12-05T05:04:18.582Z

Link: CVE-2025-66598

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-02-09T05:16:24.217

Modified: 2026-02-09T05:16:24.217

Link: CVE-2025-66598

Redhat

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OpenCVE Enrichment

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