{"cve":"CVE-2020-5594","nvd":{"published":"2020-06-23T08:15:10.487","modified":"2026-06-17T03:21:39.730","status":"Modified","description":"Mitsubishi Electric MELSEC iQ-R, iQ-F, Q, L, and FX series CPU modules all versions contain a vulnerability that allows cleartext transmission of sensitive information between CPU modules and GX Works3 and/or GX Works2 via unspecified vectors.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-319"],"references":["https://jvn.jp/en/vu/JVNVU91424496/index.html","https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-003.pdf","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-003_en.pdf","https://jvn.jp/en/vu/JVNVU91424496/index.html","https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-003.pdf"],"products":["mitsubishielectric:melsec-fx_firmware","mitsubishielectric:melsec-l_firmware","mitsubishielectric:melsec-q_firmware","mitsubishielectric:melsec_iq-f_firmware","mitsubishielectric:melsec_iq-r_firmware"],"source":"nvd","synced_at":"2026-10-19T21:05:42.039641217+00:00"},"epss":{"cve":"CVE-2020-5594","score":0.01296,"percentile":0.70357,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}