Description
A CWE-326: Inadequate Encryption Strength vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption key when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.
Published: 2020-11-19
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-28690 A CWE-326: Inadequate Encryption Strength vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption key when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.
History

Fri, 29 May 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Subscriptions

Schneider-electric Modicon M221 Modicon M221 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: schneider

Published:

Updated: 2026-05-29T13:28:02.233Z

Reserved: 2020-01-21T00:00:00.000Z

Link: CVE-2020-7565

cve-icon Vulnrichment

Updated: 2024-08-04T09:33:19.843Z

cve-icon NVD

Status : Modified

Published: 2020-11-19T22:15:14.943

Modified: 2026-06-17T03:25:01.360

Link: CVE-2020-7565

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-326

    Inadequate Encryption Strength