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UEFI Secure Boot Security Feature Bypass Vulnerability

🗓️ 14 Apr 2026 14:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 22 Views

A local attacker can bypass Secure Boot via untrusted inputs in Windows Boot Loader decisions.

Related
Detection
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Secure Boot Windows Bypass
16 Apr 202600:00
–bdu_fstec
circl
Circl
CVE-2026-0390
14 Apr 202615:49
–circl
cnnvd
CNNVD
Microsoft Windows security vulnerabilities
14 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-0390
14 Apr 202616:57
–cve
cvelist
Cvelist
CVE-2026-0390 UEFI Secure Boot Security Feature Bypass Vulnerability
14 Apr 202616:57
–cvelist
euvd
EUVD
EUVD-2026-22350
14 Apr 202618:30
–euvd
jvn
Japan Vulnerability Notes
Security information for Hitachi Disk Array Systems
4 Jun 202608:26
–jvn
mskb
Microsoft KB
April 14, 2026—KB5082142 (OS Build 20348.5020)
14 Apr 202614:00
–mskb
ncsc
NCSC
Vulnerabilities in Microsoft Windows
15 Apr 202608:53
–ncsc
nvd
NVD
CVE-2026-0390
14 Apr 202618:16
–nvd
Rows per page
Vulners
Node
OR
microsoftwindows_server_2016Range<10.0.14393.9060
microsoftwindows_server_2016Range<10.0.14393.9060
microsoftwindows_10_1607Range<10.0.14393.9060x64
microsoftwindows_10_1607Range<10.0.14393.9060x86
microsoftwindows_10_22h2Range<10.0.19045.7184x86
microsoftwindows_10_22h2Range<10.0.19045.7184x64
microsoftwindows_10_22h2Range<10.0.19045.7184x64
microsoftwindows_10_21h2Range<10.0.19044.7184x64
microsoftwindows_10_21h2Range<10.0.19044.7184x64
microsoftwindows_10_21h2Range<10.0.19044.7184x86
microsoftwindows_server_2022Range<10.0.20348.5020
microsoftwindows_server_2022Range<10.0.20348.5020
microsoftwindows_server_2019Range<10.0.17763.8644
microsoftwindows_server_2019Range<10.0.17763.8644
microsoftwindows_10_1809Range<10.0.17763.8644x64
microsoftwindows_10_1809Range<10.0.17763.8644x86

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14 Apr 2026 14:00Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.16.7
EPSS0.00318
SSVC
22