Yokogawa Electric FAST TOOLS up to R10.04 Request Header redirect

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Yokogawa Electric FAST TOOLS up to R10.04. The impacted element is an unknown function of the component Request Header Handler. Executing a manipulation can lead to redirect. This vulnerability is handled as CVE-2025-66596. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Yokogawa Electric FAST TOOLS up to R10.04 and classified as problematic. This vulnerability affects an unknown part of the component Request Header Handler. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. As an impact it is known to affect integrity. CVE summarizes:

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

The advisory is shared for download at web-material3.yokogawa.com. This vulnerability was named CVE-2025-66596 since 12/05/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1204.001.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/05/2025 CVE reserved
02/09/2026 +66 days Advisory disclosed
02/09/2026 +0 days VulDB entry created
03/06/2026 +25 days VulDB entry last update

Sourcesinfo

Advisory: web-material3.yokogawa.com
Status: Confirmed

CVE: CVE-2025-66596 (🔒)
GCVE (CVE): GCVE-0-2025-66596
GCVE (VulDB): GCVE-100-344956

Entryinfo

Created: 02/09/2026 07:59
Updated: 03/06/2026 22:15
Changes: 02/09/2026 07:59 (66), 03/06/2026 22:15 (12)
Complete: 🔍
Cache ID: 216::103

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