What is CVE-2021-20591?

CVE-2021-20591 is a high-severity vulnerability in Mitsubishielectric R00cpu, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-06-11.

How severe is CVE-2021-20591?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Mitsubishielectric R00cpu

CVE-2021-20591

Uncontrolled Resource Consumption vulnerability in Mitsubishi Electric MELSEC iQ-R series CPU modules (R00/01/02CPU all versions, R04/08/16/32/120(EN)CPU all versions, R08/16/32/120SFCPU all versions, R08/16/32/120PCPU all versions, R08/16…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.015 (71.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (x_refsource_MISC, Vendor Advisory)
Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-20591?: CVE-2021-20591 is a high-severity vulnerability in Mitsubishielectric R00cpu, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-06-11.
How severe is CVE-2021-20591?: High severity. CVSS v3 base score is 7.5 out of 10.