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 11 24h2 2218 Windows 10 Version 1607 2181 Windows 11 25h2 2170 Windows 10 1809 2066 Windows 10 21h2 1982 Windows 10 22h2 1968 Windows 11 26h1 1882 Windows Server 2012 1860 Windows Server 2012 R2 1817 Windows Server 2012 R2 (Server Core installation) 1808 Windows 10 1607 1761 Windows 11 23h2 1754 Windows Server 2012 (Server Core installation) 1703 Windows 11 Version 26H2 1007 Microsoft 365 Apps for Enterprise 579 365 Apps 575 Microsoft Office LTSC 2024 559 Microsoft Office LTSC 2021 556 Windows Server 2022 23h2 544 Windows Server 2022, 23H2 Edition (Server Core installation) 543 Office 2021 465 Office 2024 465 Microsoft Office LTSC for Mac 2021 453 Microsoft Office LTSC for Mac 2024 452 Microsoft Office 2019 386 Microsoft Office 365 for Mac 375

Exploited only (KEV) →

CVE-2026-83570 High · 7.8 CWE-416 Oct 13, 2026

Windows Search Service Elevation of Privilege Vulnerability

Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVE-2026-83569 High · 7.8 CWE-122 Oct 13, 2026

HID Parser Library Elevation of Privilege Vulnerability

Heap-based buffer overflow in HID Parser Library allows an authorized attacker to elevate privileges locally.

CVE-2026-83568 High · 7.8 CWE-862 Oct 13, 2026

Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability

Improper access control in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

CVE-2026-83567 High · 7.8 CWE-125 Oct 13, 2026

Windows NTFS Elevation of Privilege Vulnerability

Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-83566 High · 7.0 CWE-416 Oct 13, 2026

Windows Win32k Elevation of Privilege Vulnerability

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

CVE-2026-83565 Medium · 5.5 CWE-126 Oct 13, 2026

Windows Encrypting File System (EFS) Information Disclosure Vulnerability

Buffer over-read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information locally.

CVE-2026-83564 High · 7.0 CWE-416 Oct 13, 2026

Windows Search Service Elevation of Privilege Vulnerability

Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVE-2026-83523 High · 8.8 CWE-122 Oct 13, 2026

Windows Image Acquisition Remote Code Execution Vulnerability

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

CVE-2026-83522 High · 8.1 CWE-807 Oct 13, 2026

Windows IKE Extension Spoofing Vulnerability

Reliance on untrusted inputs in a security decision in Windows IKE Extension allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-83521 Medium · 6.5 CWE-125 Oct 13, 2026

Windows IKE Extension Information Disclosure Vulnerability

Out-of-bounds read in Windows IKE Extension allows an authorized attacker to disclose information over a network.

CVE-2026-83520 High · 8.8 CWE-502 Oct 13, 2026

.NET Remote Code Execution Vulnerability

Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network.

CVE-2026-83519 Critical · 9.8 CWE-122 Oct 13, 2026

Windows Error Reporting Remote Code Execution Vulnerability

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

CVE-2026-83518 High · 7.8 CWE-122 Oct 13, 2026

RPC Runtime Elevation of Privilege Vulnerability

Heap-based buffer overflow in RPC Runtime allows an authorized attacker to elevate privileges locally.

CVE-2026-83517 Critical · 9.8 CWE-122 Oct 13, 2026

Microsoft Windows Media Foundation Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.

CVE-2026-83516 High · 7.5 CWE-125 Oct 13, 2026

Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability

Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

CVE-2026-83515 Medium · 6.5 CWE-908 Oct 13, 2026

RPC Runtime Information Disclosure Vulnerability

Use of uninitialized resource in RPC Runtime allows an unauthorized attacker to disclose information over a network.

CVE-2026-83514 High · 7.8 CWE-122 Oct 13, 2026

Windows Partition Management Driver Elevation of Privilege Vulnerability

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

CVE-2026-83513 High · 7.8 CWE-122 Oct 13, 2026

Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability

Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVE-2026-83511 High · 7.4 CWE-1390 Oct 13, 2026

Active Directory Federation Services (AD FS) Spoofing Vulnerability

Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-83510 High · 7.0 CWE-367 Oct 13, 2026

Windows Setup Files Cleanup Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows Setup Files Cleanup allows an authorized attacker to elevate privileges locally.

CVE-2026-83509 High · 7.0 CWE-426 Oct 13, 2026

Windows Setup Files Cleanup Elevation of Privilege Vulnerability

Untrusted search path in Windows Setup Files Cleanup allows an authorized attacker to elevate privileges locally.

CVE-2026-83508 High · 7.8 CWE-125 Oct 13, 2026

Windows NTFS Elevation of Privilege Vulnerability

Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-83507 Medium · 5.5 CWE-59 Oct 13, 2026

Windows Update Orchestrator Service Information Disclosure Vulnerability

Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an authorized attacker to disclose information locally.

CVE-2026-83506 High · 7.8 CWE-426 Oct 13, 2026

Servicing Stack Updates Elevation of Privilege Vulnerability

Untrusted search path in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.

CVE-2026-83505 High · 7.0 CWE-367 Oct 13, 2026

Windows Setup Files Cleanup Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows Setup Files Cleanup allows an authorized attacker to elevate privileges locally.