CVE-2025-66607: Yokogawa Fast/tools

Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. The response header contains an insecure setting. Users could be redirected to malicious sites by an attacker. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04

Affected products

• Yokogawa Fast/tools: from r9.01, up to and including r10.04

Published 2026-02-09. Last modified 2026-06-17.