Medium severity · published Feb 9, 2026
CVE-2025-66604
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation
5.3
CVSS
0.1%
EPSS
No
On KEV
Description
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
The library version
could be displayed on the web page. This information could be exploited by an
attacker for other attacks.
The
affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to
R10.04
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FA
FAST/TOOLS · Yokogawa Electric Corporation
R9.01 through R10.04 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66604
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66604
Vendor Advisory
https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf
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