Description
CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the PLC provided an application project with a lower application level is running on the PLC.
Published: 2026-09-11
Score: 9.2 Critical
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

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History

Sun, 13 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Schneider-electric
Schneider-electric modicon M580
Schneider-electric modicon M580 Safety
Vendors & Products Schneider-electric
Schneider-electric modicon M580
Schneider-electric modicon M580 Safety

Fri, 11 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 11 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Description CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the PLC provided an application project with a lower application level is running on the PLC.
Weaknesses CWE-303
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Schneider-electric Modicon M580 Modicon M580 Safety
cve-icon MITRE

Status: PUBLISHED

Assigner: schneider

Published:

Updated: 2026-09-11T19:14:45.128Z

Reserved: 2026-03-10T08:36:56.944Z

Link: CVE-2026-3869

cve-icon Vulnrichment

Updated: 2026-09-11T19:14:39.322Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-11T16:17:06.200

Modified: 2026-09-18T19:30:42.730

Link: CVE-2026-3869

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-13T19:55:58Z

Weaknesses
  • CWE-303

    Incorrect Implementation of Authentication Algorithm