Improper Header Validation Vulnerability in FAST/TOOLS by Yokogawa Electric Corporation

CVE-2025-66596

What is CVE-2025-66596?

A security issue exists in Yokogawa's FAST/TOOLS where the product fails to properly validate request headers. This oversight allows attackers to exploit the system by inserting invalid host headers, potentially redirecting users to malicious websites, which can lead to unauthorized access or data exposure. The vulnerability affects specific package versions within FAST/TOOLS, making it crucial for users to review their installations and apply necessary mitigations.

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