CVE-2025-66603CRITICAL 9.8EPSS p17.2%

CVE-2025-66603CVE-2025-66603

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

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.26% probability of exploitation · percentile 17.2% · 2026-06-18T12:00:27Z
Published2026-02-09
Last modified2026-03-05

Underlying weaknesses· 1

CWE-358

References

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

1

TypeTargetConfidenceTier
WeaknessImproperly Implemented Security Check for Standardcwe-3580%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.