Search/CVE-2026-45654
● CVE — High

CVE-2026-45654

VendormicrosoftProductwindows 11 24h2, windows 11 25h2, windows 11 26h1, windows server 2025DiscoveredJun 9, 2026UpdatedJul 23, 2026

Improper access control in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

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CVSS v3.1
7.9 HIGH
EPSS
0.31%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
1
sources referencing this CVE
Related IOCs
0
seen in the same coverage
Intelligence Reports4
4 intelligence reports available

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EPSS Trend
Aug 16, 2026 → Oct 26, 2026
● 0.00pp
0.31% → 0.31% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredHIGH
User InteractionNONE
ScopeCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityNONE
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Connections
6 relationships
Timeline
disclosure → media coverage
Jun 9, 2026
Disclosure — published as a CVE record. · last revised by NVD Jul 23, 2026
Jun 9, 2026
advisories.ncsc.nl reports: NCSC-2026-0181 [1.00] [H/H] Kwetsbaarheden verholpen in Microsoft Windows