CVE-2025-66597CWE-327

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

High · published February 9, 2026

CVSS v4.0
8.8
EPSS
0%
Percentile
8.4
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v4.0
8.8 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00193 · 8.4th percentile
Weakness
CWE-327 · Use of a Broken or Risky Cryptographic Algorithm
Published
2026-02-09T03:31Z
EPSS history
Timeline
  • 09 FEB 03:31Z
    A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation
    cvelistv5