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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-2026-83747 Windows Error Reporting Information Disclosure VulnerabilityWindows Error Reporting Important 5.50.5%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83755 Win32k Information Disclosure VulnerabilityWindows Win32K Important 5.50.5%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83760 Microsoft Bluetooth Driver Information Disclosure VulnerabilityMicrosoft Bluetooth Driver Important 5.50.4%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+6
CVE-2026-83764 Windows Clipboard User Service Information Disclosure VulnerabilityWindows Clipboard User Service Important 5.50.3%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+5
CVE-2026-83765 Windows DWM Core Library Information Disclosure VulnerabilityWindows DWM Core Library Important 5.50.4%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+7
CVE-2026-83773 Windows MIDI Service Module Information Disclosure VulnerabilityWindows MIDI Service Module Important 5.50.9%Information DisclosureLocal Fix has a known issue
KB5127646KB5127648
CVE-2026-83787 Windows DHCP Server Security Feature Bypass VulnerabilityWindows DHCP Server Important 5.50.3%SFBLocal Fix has a known issue
KB5126646KB5126651+4
CVE-2026-83794 Windows Portable Device MTP Driver Information Disclosure VulnerabilityWindows Portable Device MTP Driver Important 5.50.4%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83798 Windows Update Stack Spoofing VulnerabilityWindows Update Stack Important 5.50.2%SpoofingLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83835 Windows Common Log File System Driver Information Disclosure VulnerabilityWindows Common Log File System Driver Important 5.50.9%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83849 Windows Hello Information Disclosure VulnerabilityWindows Hello Important 5.50.4%Information DisclosureLocal Fix has a known issue
KB5126653KB5126657+2
CVE-2026-83854 Windows Notification Information Disclosure VulnerabilityWindows Notification Important 5.50.3%Information DisclosureLocal Fix has a known issue
KB5126646KB5126651+5

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 02:55 UTC · 274 of 275 readable · 270 fully read · documentation 461/469 current

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