CVE-2025-66596
Host Header Injection in Yokogawa FAST/TOOLS Enables Phishing Redirects
Publication date: 2026-02-09
Last updated on: 2026-03-06
Assigner: YokogawaGroup
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| yokogawa | fast/tools | From r9.01 (inc) to r10.04 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-601 | The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the FAST/TOOLS product by Yokogawa Electric Corporation. The issue is that the product does not properly validate request headers. Specifically, when an attacker inserts an invalid host header, it can cause users to be redirected to malicious websites.
How can this vulnerability impact me? :
The impact of this vulnerability is that users of the affected FAST/TOOLS versions could be redirected to malicious sites if an attacker exploits the invalid host header validation. This could lead to phishing attacks, exposure to malware, or other malicious activities targeting users.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know