CVE-2026-0390

Published: Apr 14, 2026

Modified: Jun 1, 2026

PUBLISHED

CVSS v3.1

6.7

MEDIUM

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

Vendor	Product	Versions
Microsoft	Windows 10 Version 1607	affected `10.0.14393.0 - < 10.0.14393.9060`
Microsoft	Windows 10 Version 1809	affected `10.0.17763.0 - < 10.0.17763.8644`
Microsoft	Windows 10 Version 21H2	affected `10.0.19044.0 - < 10.0.19044.7184`
Microsoft	Windows 10 Version 22H2	affected `10.0.19045.0 - < 10.0.19045.7184`
Microsoft	Windows Server 2016	affected `10.0.14393.0 - < 10.0.14393.9060`
Microsoft	Windows Server 2016 (Server Core installation)	affected `10.0.14393.0 - < 10.0.14393.9060`
Microsoft	Windows Server 2019	affected `10.0.17763.0 - < 10.0.17763.8644`
Microsoft	Windows Server 2019 (Server Core installation)	affected `10.0.17763.0 - < 10.0.17763.8644`
Microsoft	Windows Server 2022	affected `10.0.20348.0 - < 10.0.20348.5020`

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

vendor-advisory

patch

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.