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 2186 Windows 10 Version 1607 2181 Windows 11 25h2 2138 Windows 10 1809 2039 Windows 10 21h2 1955 Windows 10 22h2 1941 Windows Server 2012 1858 Windows 11 26h1 1850 Windows Server 2012 R2 1817 Windows Server 2012 R2 (Server Core installation) 1808 Windows 10 1607 1741 Windows 11 23h2 1721 Windows Server 2012 (Server Core installation) 1703 Windows 11 Version 26H2 1007 Microsoft 365 Apps for Enterprise 579 Microsoft Office LTSC 2024 559 365 Apps 556 Microsoft Office LTSC 2021 556 Windows Server 2022 23h2 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 446 Office 2024 446 Microsoft Office 2019 386 Microsoft Office 365 for Mac 375

Exploited only (KEV) →

CVE-2026-83839 High · 7.0 CWE-367 Oct 13, 2026

Windows Hyper-V Elevation of Privilege Vulnerability

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

CVE-2026-83838 High · 8.0 CWE-191 Oct 13, 2026

Windows Bluetooth A2DP driver Elevation of Privilege Vulnerability

Integer underflow (wrap or wraparound) in Windows Bluetooth A2DP driver allows an authorized attacker to elevate privileges over an adjacent network.

CVE-2026-83837 High · 7.8 CWE-441 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-2026-83836 High · 7.8 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 locally.

CVE-2026-83835 Medium · 5.5 CWE-126 Oct 13, 2026

Windows Common Log File System Driver Information Disclosure Vulnerability

Buffer over-read in Windows Common Log File System Driver allows an authorized attacker to disclose information locally.

CVE-2026-83834 High · 7.0 Public exploit CWE-367 Oct 13, 2026

Windows Kernel-Mode Drivers Elevation of Privilege Vulnerability

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

CVE-2026-83833 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-2026-83832 High · 7.8 CWE-125 Oct 13, 2026

Windows Spaceport.sys Elevation of Privilege Vulnerability

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

CVE-2026-83830 High · 7.8 CWE-122 Oct 13, 2026

Windows COM+ Event System Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83829 High · 7.8 CWE-122 Oct 13, 2026

Microsoft Windows Search Component Elevation of Privilege Vulnerability

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

CVE-2026-83828 High · 7.8 CWE-122 Oct 13, 2026

Windows MIDI Service Module Elevation of Privileges Vulnerability

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

CVE-2026-83827 High · 7.0 CWE-122 Oct 13, 2026

Windows Bluetooth Port Driver Elevation of Privilege Vulnerability

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

CVE-2026-83826 High · 7.8 CWE-822 Oct 13, 2026

Windows Error Reporting Elevation of Privilege Vulnerability

Untrusted pointer dereference in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

CVE-2026-83798 Medium · 5.5 CWE-20 Oct 13, 2026

Windows Update Stack Spoofing Vulnerability

Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.

CVE-2026-83797 High · 8.8 CWE-125 Oct 13, 2026

Windows Partition Management Driver Remote Code Execution Vulnerability

Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.

CVE-2026-83796 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-2026-83795 High · 7.5 CWE-122 Oct 13, 2026

Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability

Heap-based buffer overflow in Windows IKE Extension allows an unauthorized attacker to deny service over a network.

CVE-2026-83794 Medium · 5.5 CWE-125 Oct 13, 2026

Windows Portable Device MTP Driver Information Disclosure Vulnerability

Out-of-bounds read in Windows Portable Device MTP Driver allows an authorized attacker to disclose information locally.

CVE-2026-83793 High · 7.0 CWE-59 Oct 13, 2026

Windows Update Orchestrator Service Elevation of Privilege Vulnerability

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

CVE-2026-83792 High · 7.8 CWE-863 Oct 13, 2026

Windows Device Install Service Elevation of Privilege Vulnerability

Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83791 High · 7.8 CWE-283 Oct 13, 2026

Windows Virtual Input Elevation of Privilege Vulnerability

Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges locally.

CVE-2026-83790 High · 7.0 CWE-416 Oct 13, 2026

Windows Hello Elevation of Privilege Vulnerability

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

CVE-2026-83789 High · 8.8 CWE-122 Oct 13, 2026

Windows SMB Client Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83788 Medium · 4.6 CWE-126 Oct 13, 2026

Windows rndismp6.sys Information Disclosure Vulnerability

Buffer over-read in Windows RNDIS allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-83787 Medium · 5.5 CWE-288 Oct 13, 2026

Windows DHCP Server Security Feature Bypass Vulnerability

Insufficient verification of data authenticity in Windows DHCP Server allows an authorized attacker to bypass a security feature locally.