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
Published: 2026-02-09
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 06 Mar 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Yokogawa fast\/tools
CPEs cpe:2.3:a:yokogawa:fast\/tools:*:*:*:*:*:*:*:*
Vendors & Products Yokogawa fast\/tools
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Mon, 09 Feb 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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. 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
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'}


Subscriptions

Yokogawa Fast/tools Fast\/tools
cve-icon MITRE

Status: PUBLISHED

Assigner: YokogawaGroup

Published:

Updated: 2026-02-09T19:05:56.310Z

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

Link: CVE-2025-66598

cve-icon Vulnrichment

Updated: 2026-02-09T19:02:35.693Z

cve-icon NVD

Status : Analyzed

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

Modified: 2026-03-06T20:25:16.860

Link: CVE-2025-66598

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-09T10:39:32Z

Weaknesses