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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-2026-119857 Windows Kernel Information Disclosure VulnerabilityWindows Kernel Important 5.50.4%Information DisclosureLocal
KB5131077KB5131080+6
CVE-2026-122162 Windows Update Stack Information Disclosure VulnerabilityWindows Update Stack Important 5.50.5%Information DisclosureLocal
KB5131077KB5131080+3
CVE-2026-122297 Windows Kernel Transaction Manager Information Disclosure VulnerabilityKernel Transaction Manager Important 5.50.4%Information DisclosureLocal
KB5131077KB5131080+8
CVE-2026-62687 Windows Backup Engine Information Disclosure VulnerabilityWindows Backup Engine Important 5.50.5%Information DisclosureLocal Fix has a known issue
KB5126653KB5126657+2
CVE-2026-62879 Windows SmartScreen Tampering VulnerabilityWindows SmartScreen Important 5.50.3%TamperingLocal Fix has a known issue
KB5126646KB5126651+5
CVE-2026-68830 Windows Universal Plug and Play (UPnP) Device Host Information Disclosure VulnerabilityWindows Universal Plug and Play (UPnP) Device Host Important 5.50.4%Information DisclosureLocal
KB5122871KB5122876+8
CVE-2026-68831 Windows Defender Firewall Service Information Disclosure VulnerabilityWindows Defender Firewall Service Important 5.50.6%Information DisclosureLocal
KB5122871KB5122876+8
CVE-2026-68842 Windows MIDI Service Module Information Disclosure VulnerabilityWindows MIDI Service Module Important 5.50.5%Information DisclosureLocal
KB5124008KB5124012
CVE-2026-68843 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 5.50.4%Information DisclosureLocal
KB5122871KB5122876+8
CVE-2026-68851 Windows NTFS Information Disclosure VulnerabilityWindows NTFS Important 5.50.4%Information DisclosureLocal
KB5122871KB5122876+8
CVE-2026-68852 Microsoft Account Information Disclosure VulnerabilityMicrosoft Account Important 5.50.5%Information DisclosureLocal
KB5122871KB5122876+8
CVE-2026-68873 Windows Program Compatibility Assistant Service Information Disclosure VulnerabilityWindows Program Compatibility Assistant Service Important 5.50.5%Information DisclosureLocal
KB5122871KB5122880+2

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 14 Nov 00:49 UTC · 274 of 275 readable · 270 fully read · documentation 469/469 current

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