VULNERABILITY INTELLIGENCE
CVE-2021-32980
CVSS score9.8 CRITICAL
EPSS probability1.11%
CISA KEVNot currently listed
Published2022-04-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 does not protect against additional software programming connections. An attacker can connect to the PLC while an existing connection is already active.
Weakness classification
- ics-cert@hq.dhs.gov: CWE-288
- nvd@nist.gov: CWE-287
Primary references
- ics-cert@hq.dhs.gov — Third Party Advisory, US Government Resource
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource