CVE-2025-66600

HIGH

FAST/TOOLS <10.04 - Info Disclosure

Title source: llm
STIX 2.1

Description

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product lacks HSTS (HTTP Strict Transport Security) configuration. When an attacker performs a Man in the middle (MITM) attack, communications with the web server could be sniffed. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04

Scores

CVSS v4 8.8
EPSS 0.0007
EPSS Percentile 20.1%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-358
Status published
Products (1)
Yokogawa Electric Corporation/FAST/TOOLS R9.01 - R10.04
Published Feb 09, 2026
Tracked Since Feb 18, 2026