CVE-2026-45656

HIGH

Microsoft Windows 10 Version 1607 - UEFI Secure Boot Security Feature Bypass Vulnerability

Title source: rule
STIX 2.1

Description

Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
UEFI Secure Boot Security Feature Bypass Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45656

Scores

CVSS v3 7.8
EPSS 0.0025
EPSS Percentile 15.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-693
Status published
Products (34)
Microsoft/Windows 10 Version 1607 10.0.14393.0 - 10.0.14393.9234
Microsoft/Windows 10 Version 1809 10.0.17763.0 - 10.0.17763.8880
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.7417
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.7417
Microsoft/Windows 11 version 23H2 10.0.22631.0 - 10.0.22631.7219
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8655
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8655
Microsoft/Windows 11 Version 26H1 1.0.0 - 10.0.28000.2269
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.2269
Microsoft/Windows Server 2012 6.2.9200.0 - 6.2.9200.26132
... and 24 more
Published Jun 09, 2026
Tracked Since Jun 09, 2026