CVE-2025-66598
SSL/TLS Downgrade Vulnerability in Yokogawa FAST/TOOLS R9-R
Publication date: 2026-02-09
Last updated on: 2026-03-06
Assigner: YokogawaGroup
Description
Description
CVSS Scores
EPSS Scores
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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-327 | The product uses a broken or risky cryptographic algorithm or protocol. |
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 The issue is that the product supports old SSL/TLS versions, which are outdated cryptographic protocols.
Because of this, an attacker could potentially decrypt communications between clients and the web server, compromising the confidentiality of the data transmitted.
What immediate steps should I take to mitigate this vulnerability?
I don't know
How can this vulnerability impact me? :
The vulnerability can impact you by allowing attackers to intercept and decrypt sensitive communications with the web server.
This could lead to exposure of confidential information, unauthorized data access, and potential further exploitation of the system.
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