Search/CVE-2026-45657
● CVE — Critical

CVE-2026-45657

VendormicrosoftProductwindows 11 24h2, windows 11 25h2, windows 11 26h1, windows server 2022, windows server 2025, windows 11 23h2DiscoveredJun 9, 2026UpdatedJul 23, 2026

Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.

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CVSS v3.1
9.8 CRITICAL
EPSS
15.5%
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 Reports6
6 intelligence reports available

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EPSS Trend
Aug 16, 2026 → Oct 26, 2026
● 0.00pp
15.5% → 15.5% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Connections
8 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