CVE-2020-5665

high

Description

Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) CPU unit firmware version 1.060 and earlier allows an attacker to cause a denial-of-service (DoS) condition on program execution and communication by sending a specially crafted ARP packet.

References

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf

https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf

https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01

https://jvn.jp/vu/JVNVU95638588/index.html

Details

Source: Mitre, NVD

Published: 2020-12-14

Updated: 2021-07-21

Risk Information

CVSS v2

Base Score: 3.3

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 7.4

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Severity: High