🛡️ CVE-2025-66597 — tools

🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-327 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

This product supports

weak cryptographic algorithms, 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

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2025-66597 is classified as CWE-327: Use of a Broken or Risky Cryptographic Algorithm. An algorithm with known weaknesses is used, so the protection it appears to give does not hold.

Affected software

CVE-2025-66597 is recorded against 1 package.

  • fast\/tools (from r9.01 up to r10.04)

Timeline and source

Published on 9 February 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

web-material3.yokogawa.com

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-327
Public Exploit ✅ No
Source NVD
Published 2026-02-09
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
fast\/tools r9.01 r10.04

Site Security Check

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