Broken or risky cryptographic algorithm in Yokogawa Electric Corporation FAST/TOOLS
Priority MEDIUM 43CWE-327Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-327.
Summary
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product supports weak cryptographic algorithms, potentially allowing an attacker to decrypt communications with the web server. 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 0.00197 9th 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-2025-66597
- 2026-10-03 Alias added: GHSA-7mvw-jq5j-mjx4
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-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-2025-41000 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-2025-66597 · CVE Program
- CVE-2025-66597 · NVD
- FIRST EPSS
- GHSA-7mvw-jq5j-mjx4 · GitHub Advisory Database · CC BY 4.0
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