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Medium · 6.9 CVE-2025-66596 EUVD-2025-207177GHSA-jf8c-97vf-m8j5

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not properly validate request hea…

Published Feb 9, 2026 · Updated Feb 9, 2026 · Assigned by YokogawaGroup

Description

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

This product does not
properly validate request headers. When an attacker inserts an invalid host
header, users could be redirected to malicious sites.

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

Affected products

VendorProductAffectedFixed
Yokogawa Electric FAST/TOOLS R9.01 – ≤ R10.04 —

References