CVE-2021-20598

medium

Description

Overly Restrictive Account Lockout Mechanism vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R08/16/32/120SFCPU all versions, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to lockout a legitimate user by continuously trying login with incorrect password.

References

https://jvn.jp/vu/JVNVU98578731/index.html

https://www.cisa.gov/news-events/ics-advisories/icsa-21-250-01

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-010_en.pdf

Details

Source: Mitre, NVD

Published: 2021-08-06

Updated: 2021-08-27

Risk Information

CVSS v2

Base Score: 5

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

Severity: Medium

CVSS v3

Base Score: 5.3

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

Severity: Medium

EPSS

EPSS: 0.01171