CVE & CISA-KEV Catalog

CVE-2021-32978

HIGH
7.5
CVSS v3
NVD

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.

CWE-256CWE-522

How to fix

Remediation Available
c0-10are-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-10dd1e-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-10dd2e-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-10dre-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-11are-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-11dd1e-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-11dd2e-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-11dre-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12are-1-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12are-2-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12are-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dd1e-1-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dd1e-2-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dd1e-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dd2e-1-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dd2e-2-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dd2e-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dre-1-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dre-2-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD
c0-12dre-d firmwareNVD
Affected:< 3.00Fixed in:3.00CVE-2021-32978derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

0.97%probability of exploitation in 30 days
58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Third-Party Advisory1
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CVE-2021-32978 severity badge

Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.