CVE-2020-5527

When MELSOFT transmission port (UDP/IP) of Mitsubishi Electric MELSEC iQ-R series (all versions), MELSEC iQ-F series (all versions), MELSEC Q series (all versions), MELSEC L series (all versions), and MELSEC F series (all versions) receives massive amount of data via unspecified vectors, resource consumption occurs and the port does not process the data properly. As a result, it may fall into a denial-of-service (DoS) condition. The vendor states this vulnerability only affects Ethernet communication functions.

• CWE-400

• https://jvn.jp/en/vu/JVNVU91553662/index.htmlThird Party Advisory
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-005_en.pdfVendor Advisory
• https://jvn.jp/en/vu/JVNVU91553662/index.htmlThird Party Advisory
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-005_en.pdfVendor Advisory

Published

Mar 30, 2020

Last Modified

Jun 17, 2026

Status

Modified

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