What is CVE-2025-66595?

CVE-2025-66595 is a medium-severity vulnerability in Yokogawa Fast\/tools, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.4/10. Published 2026-02-09.

How severe is CVE-2025-66595?

Medium severity. CVSS v3 base score is 5.4 out of 10.

CSRF in Yokogawa Fast\/tools

CVE-2025-66595

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product is vulnerable to Cross-Site Request Forgery (CSRF). When a user accesses a link crafted by an attacker, the user’s account could be compromised. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2026-02-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (0.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Yokogawa Fast\/tools
Yokogawa Electric Corporation Fast/tools — versions R9.01

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

7168b535-132a-4efe-a076-338f829b2eb9 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-66595?: CVE-2025-66595 is a medium-severity vulnerability in Yokogawa Fast\/tools, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.4/10. Published 2026-02-09.
How severe is CVE-2025-66595?: Medium severity. CVSS v3 base score is 5.4 out of 10.