CVE-2022-2004 - CVE House
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Status published High CVE-2022-2004

AutomationDirect DirectLOGIC with Ethernet Communication Uncontrolled Resource Consumption

Vulnerability Description

AutomationDirect DirectLOGIC is vulnerable to a a specially crafted packet can be sent continuously to the PLC to prevent access from DirectSoft and other devices, causing a denial-of-service condition. This issue affects: AutomationDirect DirectLOGIC D0-06 series CPUs D0-06DD1 versions prior to 2.72; D0-06DD2 versions prior to 2.72; D0-06DR versions prior to 2.72; D0-06DA versions prior to 2.72; D0-06AR versions prior to 2.72; D0-06AA versions prior to 2.72; D0-06DD1-D versions prior to 2.72; D0-06DD2-D versions prior to 2.72; D0-06DR-D versions prior to 2.72;

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Sam Hanson of Dragos reported this vulnerability to CISA.

Affected Vendor

AutomationDirect

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Affected Software

DirectLOGIC D0-06 series CPUs
Vulnerable Versions:
D0-06DD1, D0-06DD2, D0-06DR, D0-06DA, D0-06AR, D0-06AA, D0-06DD1-D, D0-06DD2-D, D0-06DR-D

Timeline

Official Publish: August 31st, 2022
Last Modified: April 16th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)