CVE-2025-66599 Information disclosure in FAST/TOOLS
Attackers can view physical file paths on web pages, potentially aiding further attacks against Yokogawa FAST/TOOLS systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-66599?
CVE-2025-66599 is a medium-severity vulnerability in Yokogawa Electric Corporation FAST/TOOLS, published on 9 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.
Physical paths could be displayed on web pages. 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
Weakness: CWE-497
Which versions are affected by CVE-2025-66599?
How do I fix CVE-2025-66599?
No fix has been published for CVE-2025-66599 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-66599 being exploited?
There is no known exploitation of CVE-2025-66599 in the wild and no public exploit code.
Sources
Also known as GHSA-pv6p-86wr-j7hp.