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CVE-2025-66606

Published: Feb 9, 2026Updated: Mar 5, 2026 Sources: CVE List NVD BDU csafCWE-86
9.6CRITICAL
NVD MITRE
EPSS Score
0.2%
Top 87.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not properly encode URLs. An attacker could tamper with web pages or execute malicious scripts. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-86

Affected Products

yokogawa
commercial·JPaka yokogawa electric corporation
fast\/tools
ICS / OT / IoT
Yokogawa Electric Corporation
commercial·JPaka yokogawa
FAST/TOOLS
ICS / OT / IoT

Exploitability

Official Patch Available
Is your org exposed to CVE-2025-66606?We can run the check for you — a free external exposure review, no install. Check my exposure

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 →

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