CVE-2025-66596

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

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:yokogawa:fast\/tools:*:*:*:*:*:*:*:*

History

06 Mar 2026, 20:28

Type	Values Removed	Values Added
First Time		Yokogawa fast\/tools Yokogawa
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
CPE		cpe:2.3:a:yokogawa:fast\/tools::::::::
Summary		(es) Se ha encontrado una vulnerabilidad en FAST/TOOLS proporcionado por Yokogawa Electric Corporation. Este producto no valida correctamente los encabezados de solicitud. Cuando un atacante inserta un encabezado de host no válido, los usuarios podrían ser redirigidos a sitios maliciosos. Los productos y versiones afectados son los siguientes: FAST/TOOLS (Paquetes: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 a R10.04
References	~~() https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf -~~	() https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf - Vendor Advisory

09 Feb 2026, 05:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-09 05:16

Updated : 2026-03-06 20:28

NVD link : CVE-2025-66596

Mitre link : CVE-2025-66596

CVE.ORG link : CVE-2025-66596

JSON object : View

Products Affected

yokogawa

fast\/tools

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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