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Status published
High
CVE-2021-32982
Automation Direct CLICK PLC CPU Modules Cleartext Transmission of Sensitive Information
Vulnerability Description
Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 passwords are sent as plaintext during unlocking and project transfers. An attacker who has network visibility can observe the password exchange.
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:
- Irfan Ahmed and Adeen Ayub of Virginia Commonwealth University and Hyunguk Yoo of the University of New Orleans reported these vulnerabilities to Automation Direct.
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CVE-2021-32978
Automation Direct CLICK PLC CPU Modules Plaintext Storage of a Password
High
7.5
Affected Vendor
Automation Direct
View all reports →Affected Software
CLICK PLC CPU Modules: C0-1x CPUs
Vulnerable Versions:
unspecified
Timeline
Official Publish:
April 4th, 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:H/I:N/A:N