Auth bypass in Automation Direct Click Plc CPU Modules: C0-1x Cpus
CVE-2021-32980
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Automation Direct Click Plc CPU Modules: C0-1x Cpus — versions unspecified
- Automationdirect C0-10are-D
- Automationdirect C0-10are-D Firmware
- Automationdirect C0-10dd1e-D
- Automationdirect C0-10dd1e-D Firmware
- Automationdirect C0-10dd2e-D
- Automationdirect C0-10dd2e-D Firmware
- Automationdirect C0-10dre-D
- Automationdirect C0-10dre-D Firmware
- Automationdirect C0-11are-D
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.cisa.gov/uscert/ics/advisories/icsa-21-166-02 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32980?
- CVE-2021-32980 is a critical-severity vulnerability in Automation Direct Click Plc CPU Modules: C0-1x Cpus, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2022-04-04.
- How severe is CVE-2021-32980?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-32980 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.