CVE-2020-5531
highpriority · track · 40EPSS 0.020 · 81 %ileEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
- Mitsubishi Electric Corporation 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)enisa_euvdEU
- mitsubishielectric mi5122-vw firmware≤ 03nvdUScpe:2.3:o:mitsubishielectric:mi5122-vw_firmware:*:*:*:*:*:*:*:*
- mitsubishielectric q24dhccpu-v firmware≤ 21121nvdUScpe:2.3:o:mitsubishielectric:q24dhccpu-v_firmware:*:*:*:*:*:*:*:*
- mitsubishielectric q24dhccpu-vg firmware≤ 21121nvdUScpe:2.3:o:mitsubishielectric:q24dhccpu-vg_firmware:*:*:*:*:*:*:*:*
- mitsubishielectric r12ccpu-v firmware≤ 11nvdUScpe:2.3:o:mitsubishielectric:r12ccpu-v_firmware:*:*:*:*:*:*:*:*
- mitsubishielectric rd55up06-v firmware≤ 08nvdUScpe:2.3:o:mitsubishielectric:rd55up06-v_firmware:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://jvn.jp/en/vu/JVNVU95424547/index.htmlcnnvd
- https://jvndb.jvn.jp/en/contents/2020/JVNDB-2020-001591.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-5531cnnvd
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-003_en.pdfcnnvd
- https://jvn.jp/en/vu/JVNVU95424547/index.htmlenisa_euvd
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-003_en.pdfenisa_euvd
- https://jvn.jp/en/vu/JVNVU95424547/index.htmlThird Party Advisorynvd
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-003_en.pdfVendor Advisorynvd
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