CVE-2025-66606
CRITICAL
2026-02-09
7168b535-132a-4efe-a076-338f829b2eb9
9.6
CVSS 3.1
Share
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Feb 09, 2026 - 04:15 nvd
CRITICAL 9.6
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
Analysis
Yokogawa FAST/TOOLS has a third vulnerability involving improper encoding of output that could enable injection attacks against the SCADA web interface.
Technical Context
CWE-86 improper neutralization of invalid characters in identifiers in Yokogawa FAST/TOOLS, the third vulnerability in the advisory.
Affected Products
['Yokogawa FAST/TOOLS']
Remediation
Apply all Yokogawa FAST/TOOLS patches.
Priority Score
48
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +48
POC: 0
Share
External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).