CVE-2025-66601

MEDIUMNVD 6.16.1—Trending — 3 sources updated this week

6.1

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

CVSS v3: 6.1
EG Score: 6.1(medium)
EPSS: 12.8%
KEV: Not listed

Published

February 9, 2026

Last Modified

March 5, 2026

References (1)

7168b535-132a-4efe-a076-338f829b2eb9https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-358Improperly Implemented Security Check for Standard

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 14:22 UTCEG score recompute
2026-05-29 14:22 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-66601?

CVE-2025-66601 is a medium vulnerability published on February 9, 2026. 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:…

When was CVE-2025-66601 disclosed?

CVE-2025-66601 was first published in the National Vulnerability Database on February 9, 2026, with the most recent update on March 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-66601 actively exploited?

CVE-2025-66601 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-66601?

CVE-2025-66601 has a CVSS v3 base score of 6.1 (NVD).

How do I remediate CVE-2025-66601?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-66601, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-66601

📅 Published

🔄 Last Modified

🔗 References (1)