CVE-2025-66602
Yokogawa Electric Corporation FAST/TOOLS Remote IP Address Guessing Vulnerability
Description
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
INFO
Published Date :
Feb. 9, 2026, 4:15 a.m.
Last Modified :
Feb. 9, 2026, 4:15 a.m.
Remotely Exploit :
Yes !
Source :
7168b535-132a-4efe-a076-338f829b2eb9
Affected Products
The following products are affected by CVE-2025-66602
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 7168b535-132a-4efe-a076-338f829b2eb9 | ||||
| CVSS 4.0 | MEDIUM | 7168b535-132a-4efe-a076-338f829b2eb9 |
Solution
- Configure the web server to accept access only from trusted IP addresses.
- Implement network segmentation to limit exposure.
- Apply vendor security patches when available.
- Monitor network for suspicious IP address activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-66602.
| URL | Resource |
|---|---|
| https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-66602 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-66602
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-66602 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-66602 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 7168b535-132a-4efe-a076-338f829b2eb9
Feb. 09, 2026
Action Type Old Value New Value Added Description 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 Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/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 Added CWE CWE-291 Added Reference https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf