CVE-2021-32978

HIGH

Automation Direct CLICK PLC CPU <v3.00 - Info Disclosure

Title source: llm

Description

The programming protocol allows for a previously entered password and lock state to be read by an attacker. If the previously entered password was successful, the attacker can then use the password to unlock Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00.

References (1)

Scores

CVSS v3 7.5
EPSS 0.0022
EPSS Percentile 44.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Classification

CWE
CWE-522 CWE-256
Status published

Affected Products (20)

automationdirect/c0-10dd1e-d_firmware < 3.00
automationdirect/c0-10dd2e-d_firmware < 3.00
automationdirect/c0-10dre-d_firmware < 3.00
automationdirect/c0-10are-d_firmware < 3.00
automationdirect/c0-11dd1e-d_firmware < 3.00
automationdirect/c0-11dd2e-d_firmware < 3.00
automationdirect/c0-11dre-d_firmware < 3.00
automationdirect/c0-11are-d_firmware < 3.00
automationdirect/c0-12dd1e-d_firmware < 3.00
automationdirect/c0-12dd2e-d_firmware < 3.00
automationdirect/c0-12dre-d_firmware < 3.00
automationdirect/c0-12are-d_firmware < 3.00
automationdirect/c0-12dd1e-1-d_firmware < 3.00
automationdirect/c0-12dd2e-1-d_firmware < 3.00
automationdirect/c0-12dre-1-d_firmware < 3.00
... and 5 more

Timeline

Published Apr 04, 2022
Tracked Since Feb 18, 2026