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-2026-83919 High · 7.8 CWE-122 Oct 13, 2026

Microsoft Internet Messaging API Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Internet Messaging API allows an authorized attacker to execute code locally.

CVE-2026-83918 High · 7.8 CWE-190 Oct 13, 2026

Windows Kernel Elevation of Privilege Vulnerability

Integer overflow or wraparound in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-83917 High · 7.0 CWE-416 Oct 13, 2026

Windows ALPC Elevation of Privilege Vulnerability

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

CVE-2026-83916 High · 7.0 CWE-415 Oct 13, 2026

Windows Error Reporting Remote Code Execution Vulnerability

Double free in Windows Error Reporting allows an authorized attacker to execute code locally.

CVE-2026-83915 High · 7.0 CWE-416 Oct 13, 2026

Windows Diagnostic Policy Service Elevation of Privilege Vulnerability

Use after free in Windows Diagnostic Policy Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83914 High · 8.1 CWE-416 Oct 13, 2026

Microsoft XML Remote Code Execution Vulnerability

Use after free in Microsoft XML allows an unauthorized attacker to execute code over a network.

CVE-2026-83913 High · 7.8 CWE-416 Oct 13, 2026

Windows Kernel Elevation of Privilege Vulnerability

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

CVE-2026-83912 High · 7.8 CWE-416 Oct 13, 2026

Windows Direct Composition Elevation of Privilege Vulnerability

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

CVE-2026-83911 High · 7.0 CWE-122 Oct 13, 2026

Windows Storage Elevation of Privilege Vulnerability

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

CVE-2026-83910 Critical · 9.8 CWE-787 Oct 13, 2026

RPC Runtime Library Remote Code Execution Vulnerability

Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.

CVE-2026-83909 Medium · 4.7 CWE-497 Oct 13, 2026

Windows Win32 Kernel Subsystem Information Disclosure Vulnerability

Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.

CVE-2026-83908 High · 7.0 CWE-763 Oct 13, 2026

RPC Runtime Elevation of Privilege Vulnerability

Release of invalid pointer or reference in RPC Runtime allows an authorized attacker to elevate privileges locally.

CVE-2026-83907 Medium · 5.5 CWE-497 Oct 13, 2026

Windows Hello Information Disclosure Vulnerability

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

CVE-2026-83906 Medium · 6.5 CWE-303 Oct 13, 2026

Windows Shell Spoofing Vulnerability

Incorrect implementation of authentication algorithm in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-83905 Medium · 4.7 CWE-497 Oct 13, 2026

Windows Shell Information Disclosure Vulnerability

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

CVE-2026-83904 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-2026-83903 High · 7.8 CWE-122 Oct 13, 2026

Windows Direct Composition Elevation of Privilege Vulnerability

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

CVE-2026-83902 High · 7.8 CWE-122 Oct 13, 2026

Windows Direct Composition Elevation of Privilege Vulnerability

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

CVE-2026-83901 High · 7.0 CWE-416 Oct 13, 2026

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

CVE-2026-83900 High · 7.0 CWE-416 Oct 13, 2026

Windows Bind Filter Driver Elevation of Privilege Vulnerability

Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-83899 High · 7.0 CWE-362 Oct 13, 2026

Windows Installer Elevation of Privilege Vulnerability

Improper privilege management in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-83898 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-2026-83897 Medium · 4.7 CWE-497 Oct 13, 2026

Windows Win32 Kernel Subsystem Information Disclosure Vulnerability

Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.

CVE-2026-83896 High · 7.8 CWE-122 Oct 13, 2026

Windows Direct Composition Elevation of Privilege Vulnerability

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

CVE-2026-83895 Medium · 6.8 CWE-122 Oct 13, 2026

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an unauthorized attacker to elevate privileges with a physical attack.