Open redirect in Yokogawa Electric Corporation FAST/TOOLS
Priority LOW 36CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.
Summary
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
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00187 8th 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-2025-66596
- 2026-10-03 Alias added: GHSA-jf8c-97vf-m8j5
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-2025-41006 A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. 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-2025-66596 · CVE Program
- CVE-2025-66596 · NVD
- FIRST EPSS
- GHSA-jf8c-97vf-m8j5 · GitHub Advisory Database · CC BY 4.0
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