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Security

Microsoft security updates and public advisory evidence: affected products, fixing updates, exploitation and source coverage.

Security Update Guide CISA KEV

CVEs · all collected releases

2592 matches in Windows · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-83872 Windows TCP/IP Local Elevation of Privilege VulnerabilityWindows TCP/IP Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83873 Windows Shell Elevation of Privilege VulnerabilityWindows Shell Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83876 Windows Shell Elevation of Privilege VulnerabilityWindows Shell Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83877 Windows Devices Human Interface Elevation of Privilege VulnerabilityHID Parser Library Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+5
CVE-2026-83881 Windows exFAT File System Elevation of Privilege VulnerabilityWindows exFAT File System Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83882 Windows Kernel Elevation of Privilege VulnerabilityWindows Kernel Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+5
CVE-2026-83883 Windows Win32k Elevation of Privilege VulnerabilityWindows Win32K Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83896 Windows Direct Composition Elevation of Privilege VulnerabilityWindows Direct Composition Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+6
CVE-2026-83902 Windows Direct Composition Elevation of Privilege VulnerabilityWindows Direct Composition Important 7.80.4%EoPLocal Fix has a known issueRevised 10 Nov
KB5126646KB5126651+5
CVE-2026-83903 Windows Direct Composition Elevation of Privilege VulnerabilityWindows Direct Composition Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5127648
CVE-2026-83912 Windows Direct Composition Elevation of Privilege VulnerabilityWindows Direct Composition Important 7.80.3%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83913 Windows Kernel Elevation of Privilege VulnerabilityWindows Kernel Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126653+4

Advisories

MSRC guidance without a CVE of its own · 1 advisory
ADV260001
Hardening changes for ReFS volumes on removable mediaStarting with Windows updates released on and after October 13, 2026, Microsoft is making hardening changes to the Resilient File System (ReFS) . This change is not enable by default until 2027. Please see Hardening changes for ReFS volumes on removable media for more information.
Published 13 Oct28 affected products
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 13 Nov 06:11 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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