{"cve":"CVE-2020-5531","nvd":{"published":"2020-02-17T07:15:16.473","modified":"2026-06-17T03:21:33.160","status":"Modified","description":"Mitsubishi Electric MELSEC C Controller Module and MELIPC Series MI5000 MELSEC-Q Series C Controller Module(Q24DHCCPU-V, Q24DHCCPU-VG User Ethernet port (CH1, CH2): First 5 digits of serial number 21121 or before), MELSEC iQ-R Series C Controller Module / C Intelligent Function Module(R12CCPU-V Ethernet port (CH1, CH2): First 2 digits of serial number 11 or before, and RD55UP06-V Ethernet port: First 2 digits of serial number 08 or before), and MELIPC Series MI5000(MI5122-VW Ethernet port (CH1): First 2 digits of serial number 03 or before, or the firmware version 03 or before) allow remote attackers to cause a denial of service and/or malware being executed 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":[],"references":["https://jvn.jp/en/vu/JVNVU95424547/index.html","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-003_en.pdf","https://jvn.jp/en/vu/JVNVU95424547/index.html","https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-003_en.pdf"],"products":["mitsubishielectric:mi5122-vw_firmware","mitsubishielectric:q24dhccpu-v_firmware","mitsubishielectric:q24dhccpu-vg_firmware","mitsubishielectric:r12ccpu-v_firmware","mitsubishielectric:rd55up06-v_firmware"],"source":"nvd","synced_at":"2026-10-19T21:02:53.949909883+00:00"},"epss":{"cve":"CVE-2020-5531","score":0.02025,"percentile":0.80996,"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."]}