Unrated severityNVD Advisory· Published Feb 9, 2026· Updated Feb 9, 2026
CVE-2025-66596
CVE-2025-66596
Description
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
This product does not properly validate request headers. When an attacker inserts an invalid host header, users could be redirected to malicious sites.
The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
Affected products
2- Range: R9.01 - R10.04
- Yokogawa Electric Corporation/FAST/TOOLSv5Range: R9.01
Patches
Vulnerability mechanics
References
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