Search/CVE-2026-20863
● CVE — High

CVE-2026-20863

VendormicrosoftProductwindows 11 24h2, windows 11 25h2, windows server 2022, windows server 2025, windows 11 23h2, windows server 2022 23h2DiscoveredJan 13, 2026UpdatedJul 30, 2026

Double free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

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CVSS v3.1
7 HIGH
EPSS
0.39%
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
EPSS Trend
Aug 16, 2026 → Oct 22, 2026
● 0.00pp
0.39% → 0.39% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityHIGH
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Connections
8 relationships
Timeline
disclosure → media coverage
Jan 13, 2026
Disclosure — published as a CVE record. · last revised by NVD Jul 30, 2026
Jan 13, 2026
advisories.ncsc.nl reports: NCSC-2026-0007 [1.00] [M/H] Kwetsbaarheden verholpen in Microsoft Windows