CVE-2026-3869

Published Sep 11, 2026 CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
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
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
schneider
Published
Updated
Sep 11, 2026, 7:14 PM
Reserved
Mar 10, 2026, 8:36 AM
Status
Awaiting Analysis
Published
Sep 11, 2026, 4:17 PM
Modified
Sep 18, 2026, 7:30 PM