CVE-2025-66608
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Improper URL Validation in Yokogawa FAST/TOOLS Enables File Theft

Publication date: 2026-02-09

Last updated on: 2026-03-06

Assigner: YokogawaGroup

Description
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not properly validate URLs. An attacker could send specially crafted requests to steal files from the web server. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04

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Meta Information

Published
2026-02-09
Last Modified
2026-03-06
Generated
2026-07-06
AI Q&A
2026-02-09
EPSS Evaluated
2026-07-05
NVD
CVE-2025-66608
EUVD
EUVD-2025-207167

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
yokogawa fast/tools From r9.01 (inc) to r10.04 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-29 The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in the FAST/TOOLS product by Yokogawa Electric Corporation. The issue is that the product does not properly validate URLs, which allows an attacker to send specially crafted requests to the web server.

By exploiting this flaw, an attacker could steal files from the web server.

Mitigation Strategies

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Impact Analysis

The vulnerability can lead to unauthorized access to files on the web server hosting FAST/TOOLS. This means sensitive or critical files could be stolen by an attacker without any authentication or user interaction.

Such unauthorized file access could compromise the confidentiality and integrity of data, potentially leading to further exploitation or data breaches.

Compliance Impact

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Detection Guidance

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