CVE-2026-0390

| EUVD-2026-22350 MEDIUM
2026-04-14 microsoft GHSA-crrm-44jr-89j8
Authentication Bypass Microsoft Windows 10 Version 1607 Windows 10 Version 1809 Windows 10 Version 21H2 Windows 10 Version 22H2 Windows Server 2016 Windows Server 2016 Server Core Installation Windows Server 2019 Windows Server 2019 Server Core Installation Windows Server 2022
6.7
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
Analysis Generated
Apr 14, 2026 - 19:41 vuln.today

DescriptionNVD

Reliance on untrusted inputs in a security decision in Windows Boot Loader allows an authorized attacker to bypass a security feature locally.

AnalysisAI

Windows Boot Loader accepts untrusted inputs for security decisions, allowing authorized local attackers to bypass security features with high confidentiality, integrity, and availability impact. This authentication bypass vulnerability (CVSS 6.7) affects Windows 10 versions 1607, 1809, 21H2, and 22H2, as well as Windows Server 2016, 2019, and 2022. …

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CVE-2026-0390 vulnerability details – vuln.today
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