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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-2026-83563 Winlogon Elevation of Privilege VulnerabilityWinlogon Important 7.80.5%EoPLocal
KB5131077KB5131080+4
CVE-2026-83567 Windows NTFS Elevation of Privilege VulnerabilityWindows NTFS Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83568 Windows Kernel-Mode Drivers Elevation of Privilege VulnerabilityWindows Kernel-Mode Drivers Important 7.80.3%EoPLocal Fix has a known issue
KB5126646KB5127646+1
CVE-2026-83569 HID Parser Library Elevation of Privilege VulnerabilityHID Parser Library Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+5
CVE-2026-83570 Windows Search Service Elevation of Privilege VulnerabilityMicrosoft Windows Search Component Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+7
CVE-2026-83579 Windows Smart Card Elevation of Privilege VulnerabilityWindows Smart Card Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83583 Windows Geotag Broker Elevation of Privilege VulnerabilityWindows Geotag Broker Important 7.80.3%EoPLocal Fix has a known issue
KB5126646KB5126651+6
CVE-2026-83585 Windows NTFS Elevation of Privilege VulnerabilityWindows NTFS Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83586 Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege VulnerabilityWindows Resilient File System (ReFS) Deduplication Service Important 7.80.3%EoPLocal Fix has a known issue
KB5126646KB5126653+2
CVE-2026-83587 Windows Core Messaging Elevation of Privilege VulnerabilityWindows Core Messaging Important 7.80.4%EoPLocal Fix has a known issueRevised 4 Nov
KB5126646KB5126651+6
CVE-2026-83588 Windows USB Driver Elevation of Privilege VulnerabilityWindows USB Driver Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83634 Windows BitLocker Elevation of Privilege VulnerabilityWindows BitLocker Important 7.80.4%EoPLocal Fix has a known issue
KB5126646KB5126653+3

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 05:08 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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