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Status published
Unknown
CVE-2020-7566
A CWE-334: Small Space of Random Values vulnerability exists in...
Vulnerability Description
A CWE-334: Small Space of Random Values vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption keys when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Affected Software
Modicon M221, all references, all versions
Vulnerable Versions:
Modicon M221, all references, all versions
Timeline
Official Publish:
November 19th, 2020
Last Modified:
May 29th, 2026
Added to House:
July 21st, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.