A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
Priority LOW 36CWE-291Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. The web server accepts access by IP address. When a worm that randomly searches for IP addresses intrudes into the network, it could potentially be attacked by the worm. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00358 29th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Yokogawa Electric Corporation | FAST/TOOLS | R9.01 – R10.04 | — | No fix listed | CNA |
- FAST/TOOLS VendorYokogawa Electric Corporation Affected R9.01 – R10.04 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:yokogawa:fast\/tools:*:*:*:*:*:*:*:* | r9.01 – r10.04 | Vulnerable | Yokogawa Electric Corporation |
- cpe:2.3:a:yokogawa:fast\/tools:*:*:*:*:*:*:*:* Versions r9.01 – r10.04 Vulnerable ·Yokogawa Electric Corporation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-66602
- 2026-10-03 Alias added: GHSA-55cf-6jj6-233p
References
More Yokogawa Electric Corporation Fast/tools vulnerabilities
- TI-2025-41012 A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. CVSS 4.0HIGH 8.7
- TI-2025-41001 Broken or risky cryptographic algorithm in Yokogawa Electric Corporation FAST/TOOLS CVSS 4.0HIGH 8.8
- TI-2018-11593 Improper input validation in Yokogawa Electric Corporation Multiple Yokogawa products… CVSS 3.0HIGH 7.5
- TI-2025-41000 Open redirect in Yokogawa Electric Corporation FAST/TOOLS CVSS 4.0MEDIUM 6.9
- TI-2025-40998 Information disclosure through error messages in Yokogawa Electric Corporation FAST/TOOLS CVSS 4.0MEDIUM 6.9
- TI-2025-41002 Broken or risky cryptographic algorithm in Yokogawa Electric Corporation FAST/TOOLS CVSS 4.0HIGH 7.1
Sources
- CVE-2025-66602 · CVE Program
- CVE-2025-66602 · NVD
- FIRST EPSS
- GHSA-55cf-6jj6-233p · GitHub Advisory Database · CC BY 4.0
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