CVE-2025-66603
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. The...
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
The web server accepts the OPTIONS method. An attacker could potentially use this information to carry out other attacks.
The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Active
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
The web server accepts the OPTIONS method. An attacker could potentially use this information to carry out other attacks.
The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
- Record
CVE-2025-66603- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-358
- Updated
- 2026-11-02
EUVDEUVD-2025-207170
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
The web server accepts the OPTIONS method. An attacker could potentially use this information to carry out other attacks.
The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
- Record
EUVD-2025-207170- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-g8q7-r3f2-x8cw
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. The...
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
The web server accepts the OPTIONS method. An attacker could potentially use this information to carry out other attacks.
The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
- Record
GHSA-g8q7-r3f2-x8cw- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-358
- Updated
- 2026-11-02
NVD
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
The web server accepts the OPTIONS method. An attacker could potentially use this information to carry out other attacks.
The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04
- Record
CVE-2025-66603- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-358
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-66603 is a low vulnerability (CVSS 2.1) in Yokogawa Electric Corporation Fast/tools, published February 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 23rd percentile. No source names a fixed version.