CVE-2025-66603

Published Feb 9, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
Description
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.



The web server accepts
the OPTIONS method. An attacker could potentially use this information to carry
out other attacks.



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

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
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': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Yokogawa
Yokogawa fast/tools
Vendors & Products Yokogawa
Yokogawa fast/tools
Type Values Removed Values Added
Description A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. The web server accepts the OPTIONS method. An attacker could potentially use this information to carry out 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-358
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
YokogawaGroup
Published
Updated
Feb 9, 2026, 7:06 PM
Reserved
Dec 5, 2025, 5:04 AM
Status
Analyzed
Published
Feb 9, 2026, 4:15 AM
Modified
Jun 17, 2026, 9:57 AM