{"id":"CVE-2025-66598","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-66598","generatedAt":"2026-10-28T10:46:44.610Z","title":"A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.","description":"A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation.\n\n\n\nThis product supports\nold SSL/TLS versions, potentially allowing an attacker to decrypt\ncommunications with the web server.\n\n\n\nThe\naffected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to\nR10.04","published":"2026-02-09T05:16:24.000Z","lastModified":"2026-06-17T09:57:06.000Z","status":"Analyzed","sourceIdentifier":"7168b535-132a-4efe-a076-338f829b2eb9","cvss":{"version":"4.0","score":7.1,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/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/M"},"cwe":["CWE-327"],"affected":["yokogawa/fast\\/tools"],"epss":{"score":0.00176,"percentile":0.07085,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://web-material3.yokogawa.com/1/39206/files/YSAR-26-0001-E.pdf","tags":["Vendor Advisory"],"source":"7168b535-132a-4efe-a076-338f829b2eb9"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-66598","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}