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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-2026-70195 Windows Ancillary Function Driver for WinSock Information Disclosure VulnerabilityWindows Ancillary Function Driver for WinSock Important 4.70.3%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-72931 Windows Secure Socket Tunneling Protocol (SSTP) Denial of Service VulnerabilityWindows Secure Socket Tunneling Protocol (SSTP) Important 4.70.3%DoSLocal
KB5122871KB5122876+8
CVE-2026-83504 Windows SmartScreen Information Disclosure VulnerabilityWindows SmartScreen Important 4.70.3%Information DisclosureLocal
KB5122880KB5124008+1
CVE-2026-83582 Windows Graphics Kernel Information Disclosure VulnerabilityWindows Graphics Kernel Important 4.70.4%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83656 Windows Modern Device Management (MDM) Tampering VulnerabilityWindows Modern Device Management (MDM) Important 4.70.3%TamperingLocal Fix has a known issue
KB5126646KB5126653+4
CVE-2026-83672 Windows Installer Information Disclosure VulnerabilityWindows Installer Important 4.70.7%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83697 Windows Modern Device Management (MDM) Tampering VulnerabilityWindows Modern Device Management (MDM) Important 4.70.2%TamperingLocal Fix has a known issue
KB5126646KB5126651+5
CVE-2026-83774 Windows Win32 Kernel Subsystem Information Disclosure VulnerabilityWindows Win32 Kernel Subsystem Important 4.70.7%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83786 Windows NTFS Information Disclosure VulnerabilityWindows NTFS Important 4.70.7%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83865 Windows Internet (wininet.dll) Tampering VulnerabilityWindows Internet (wininet.dll) Important 4.70.3%TamperingLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83897 Windows Win32 Kernel Subsystem Information Disclosure VulnerabilityWindows Win32 Kernel Subsystem Important 4.70.7%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83905 Windows Shell Information Disclosure VulnerabilityWindows Shell Important 4.70.7%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+7

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 15 Nov 08:29 UTC · 254 of 275 readable · 250 fully read · documentation 469/469 current

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