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Vulnerability IntelligenceCVE-2025-66598

CVE-2025-66598

HIGH7.1

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation

Published Feb 9, 2026

Modified 3 weeks ago

Details

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.

This product supports old SSL/TLS versions, potentially allowing an attacker to decrypt communications with the web server.

The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04

References

WEB

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

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2025-66598

CVSS Analysis

CVSS v4.0

7.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

HighVC:H

Vuln. Integrity

LowVI:L

Vuln. Availability

NoneVA:N

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

7.1/CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Weakness Type (CWE)

Cryptography

CWE-327

Broken Crypto Algorithm

Ecosystems

Timeline

PublishedFeb 9, 2026

ModifiedFeb 9, 2026

CVE-2025-66598 | Mondoo Vulnerability Intelligence