CVE-2020-5527 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://jvn.jp/en/vu/JVNVU91553662/index.html https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2019-005_en.pdf

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5