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CVE-2025-66600

Published: Feb 9, 2026Updated: Feb 9, 2026 Sources: CVE List NVD BDU csafCWE-358
NVD MITRE
8.2CVSSHIGH
EPSS Score
0.3%
Top 77.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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

CVSS Vector Breakdown

AV:NAC:LC:HI:LA:N
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Impact
C:HConfidentiality
H
I:LIntegrity
L
A:NAvailability
None
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Weaknesses

CWE-358

Affected Products

FAST/TOOLSYokogawa Electric CorporationICS / OT / IoT
yokogawa electric corporationcommercialJPICS / OT / IoTaka yokogawa

Exploitability

Official Patch Available

References

https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf
web-material3.yokogawa.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-041-01.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-26-041-01
cisa.gov
and 54 more references View all →

Timeline

Published
Feb 9, 2026
Last Updated
Feb 9, 2026

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