CVE-2021-32978

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-256CWE-522

Affected software

No affected versions have been published.

Timeline

Published
Apr 4, 2022
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-329797.5Null pointer dereference in SuiteLink server while processing commands 0x04/0x0aCVE-2021-32985.4Collabtive 3.1 allows XSS when an authenticated user enters an XSS payload into the address section of the profile edit page, aka the manageCVE-2021-329809.8Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 does not protect against additional software programming coCVE-2021-329817.2AVEVA System Platform versions 2017 through 2020 R2 P01 uses external input to construct a pathname that is intended to identify a file or dCVE-2021-329827.5Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 passwords are sent as plaintext during unlocking and projecCVE-2021-329839.8A Blind SQL injection vulnerability exists in the /DataHandler/Handler_CFG.ashx endpoint of Delta Electronics DIAEnergie Version 1.7.5 and pCVE-2021-329849.8All programming connections receive the same unlocked privileges, which can result in a privilege escalation. During the time Automation DirCVE-2021-329857.2AVEVA System Platform versions 2017 through 2020 R2 P01 does not properly verify that the source of data or communication is valid.CVE-2021-329869.8After Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, the unlocked stateCVE-2021-329877.5Null pointer dereference in SuiteLink server while processing command 0x0bCVE-2021-329889.8FATEK Automation WinProladder Versions 3.30 and prior are vulnerable to an out-of-bounds write, which may allow an attacker to execute arbitCVE-2021-329896.1When a non-existent resource is requested, the LCDS LAquis SCADA application (version 4.3.1.1011 and prior) returns error messages which may
CVE-2021-32978: High severity, CVSS 7.5 | Vulnix