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Vulnerability · Published Feb 9, 2026 · Assigned by YokogawaGroup

CVE-2025-66601

Medium 6.3

In plain English

A medium-severity security flaw in FAST/TOOLS from Yokogawa Electric Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 4.0)6.3Medium
Exploit odds (30 days)0.2%top 91.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not specify MIME types. When an attacker performs a content sniffing attack, malicious scripts could be executed. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04

Affected products (as reported)

VendorProductVersions
Yokogawa Electric Corporation FAST/TOOLS R9.01 – through R10.04

Weakness: CWE-358 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

References