Microsoft vulnerabilities

Published CVEs affecting Microsoft products: 5234 record(s), with severity, exploitation and fixes.

Windows Server 2025 3001 Windows Server 2025 (Server Core installation) 2997 Windows 11 Version 24H2 2883 Windows 11 Version 25H2 2835 Windows Server 2022 2820 Windows Server 2019 2708 Windows Server 2019 (Server Core installation) 2666 Windows 10 Version 1809 2600 Windows 10 Version 21H2 2576 Windows 11 version 26H1 2565 Windows 10 Version 22H2 2559 Windows 11 version 23H2 2391 Windows Server 2016 2296 Windows Server 2016 (Server Core installation) 2243 Windows 10 Version 1607 2181 Windows 11 24h2 2163 Windows 11 25h2 2115 Windows 10 1809 2012 Windows 10 21h2 1933 Windows 10 22h2 1919 Windows Server 2012 1855 Windows 11 26h1 1827 Windows Server 2012 R2 1817 Windows Server 2012 R2 (Server Core installation) 1808 Windows 10 1607 1720 Windows Server 2012 (Server Core installation) 1703 Windows 11 23h2 1698 Windows 11 Version 26H2 1007 Microsoft 365 Apps for Enterprise 579 Microsoft Office LTSC 2024 559 Microsoft Office LTSC 2021 556 Windows Server 2022 23h2 544 365 Apps 544 Windows Server 2022, 23H2 Edition (Server Core installation) 543 Microsoft Office LTSC for Mac 2021 453 Microsoft Office LTSC for Mac 2024 452 Office 2021 434 Office 2024 434 Microsoft Office 2019 386 Microsoft Office 365 for Mac 375

Exploited only (KEV) →

CVE-2026-83893 Medium · 5.5 CWE-497 Oct 13, 2026

Windows Clipboard User Service Information Disclosure Vulnerability

Exposure of sensitive system information to an unauthorized control sphere in Windows Clipboard User Service allows an authorized attacker to disclose information locally.

CVE-2026-83892 Medium · 5.5 CWE-125 Oct 13, 2026

Windows Human Interface Device Information Disclosure Vulnerability

Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.

CVE-2026-83891 High · 8.8 CWE-20 Oct 13, 2026

Microsoft Office Word Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-83889 High · 8.8 CWE-763 Oct 13, 2026

Windows DNS Server Remote Code Execution Vulnerability

Release of invalid pointer or reference in DNS Server allows an authorized attacker to execute code over a network.

CVE-2026-83888 Medium · 6.5 CWE-126 Oct 13, 2026

Windows CD-ROM Driver Elevation of Privilege Vulnerability

Buffer over-read in Windows CD-ROM Driver allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83887 Medium · 5.5 CWE-125 Oct 13, 2026

HID Parser Library Information Disclosure Vulnerability

Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.

CVE-2026-83886 High · 7.0 CWE-416 Oct 13, 2026

Windows Update Orchestrator Service Elevation of Privilege Vulnerability

Use after free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83885 Medium · 5.6 CWE-326 Oct 13, 2026

Windows Virtualization-Based Security (VBS) Enclave Spoofing Vulnerability

Inadequate encryption strength in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to perform spoofing locally.

CVE-2026-83884 Medium · 5.5 CWE-125 Oct 13, 2026

Windows Human Interface Device Information Disclosure Vulnerability

Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.

CVE-2026-83883 High · 7.8 CWE-416 Oct 13, 2026

Windows Win32k Elevation of Privilege Vulnerability

Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-83882 High · 7.8 CWE-122 Oct 13, 2026

Windows Kernel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-83881 High · 7.8 CWE-122 Oct 13, 2026

Windows exFAT File System Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows exFAT File System allows an authorized attacker to elevate privileges locally.

CVE-2026-83879 High · 7.0 CWE-362 Oct 13, 2026

Windows Overlay Filter Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

CVE-2026-83877 High · 7.8 CWE-190 Oct 13, 2026

Windows Devices Human Interface Elevation of Privilege Vulnerability

Integer overflow or wraparound in HID Parser Library allows an authorized attacker to elevate privileges locally.

CVE-2026-83876 High · 7.8 CWE-416 Oct 13, 2026

Windows Shell Elevation of Privilege Vulnerability

Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2026-83875 Medium · 5.5 CWE-125 Oct 13, 2026

Windows Human Interface Device Information Disclosure Vulnerability

Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally.

CVE-2026-83874 High · 8.8 CWE-122 Oct 13, 2026

Windows Event Tracing Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code over a network.

CVE-2026-83873 High · 7.8 CWE-23 Oct 13, 2026

Windows Shell Elevation of Privilege Vulnerability

Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2026-83872 High · 7.8 CWE-681 Oct 13, 2026

Windows TCP/IP Local Elevation of Privilege Vulnerability

Incorrect conversion between numeric types in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

CVE-2026-83871 High · 7.0 CWE-122 Oct 13, 2026

Microsoft OpenSSH for Windows Elevation of Privilege Vulnerability

Heap-based buffer overflow in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

CVE-2026-83870 Medium · 5.5 CWE-125 Oct 13, 2026

Windows Aggregated Data Platform Service Information Disclosure Vulnerability

Out-of-bounds read in Windows Aggregated Data Platform Service allows an authorized attacker to disclose information locally.

CVE-2026-83869 Critical · 9.8 CWE-191 Oct 13, 2026

Windows Domain Name Service Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code over a network.

CVE-2026-83868 High · 7.0 CWE-362 Oct 13, 2026

Microsoft Bluetooth Driver Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Bluetooth Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-83867 High · 7.8 CWE-122 Oct 13, 2026

Windows Push Notifications Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

CVE-2026-83866 High · 7.0 CWE-416 Oct 13, 2026

Windows Win32k Elevation of Privilege Vulnerability

Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.