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, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to prevent legitimate clients from connecting to the MELSOFT transmission port (TCP/IP) by not closing a connection properly, which may lead to a denial of service (DoS) condition.

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-8009 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, R08/16/32/120PSFCPU all versions) allows a remote unauthenticated attacker to prevent legitimate clients from connecting to the MELSOFT transmission port (TCP/IP) by not closing a connection properly, which may lead to a denial of service (DoS) condition.
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: Mitsubishi

Published:

Updated: 2024-08-03T17:45:44.388Z

Reserved: 2020-12-17T00:00:00

Link: CVE-2021-20591

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-06-11T16:15:08.987

Modified: 2024-11-21T05:46:50.187

Link: CVE-2021-20591

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses