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-2026-83504 Medium · 4.7 CWE-367 Oct 13, 2026

Windows SmartScreen Information Disclosure Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows SmartScreen allows an authorized attacker to disclose information locally.

CVE-2026-83500 Medium · 6.1 CWE-601 Oct 13, 2026

Windows BitLocker Security Feature Bypass Vulnerability

Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2026-83499 High · 7.8 CWE-1220 Oct 13, 2026

Windows Server Update Service Elevation of Privilege Vulnerability

Insufficient granularity of access control in Windows Server Update Service allows an authorized attacker to elevate privileges locally.

CVE-2026-81971 High · 7.0 CWE-362 Oct 13, 2026

Windows NTFS Elevation of Privilege Vulnerability

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

CVE-2026-81969 High · 7.8 CWE-1220 Oct 13, 2026

Windows Server Update Service Elevation of Privilege Vulnerability

Insufficient granularity of access control in Windows Server Update Service allows an authorized attacker to elevate privileges locally.

CVE-2026-81964 Medium · 5.5 CWE-798 Oct 13, 2026

Windows Update Orchestrator Service Security Feature Bypass Vulnerability

Use of hard-coded credentials in Windows Update Orchestrator Service allows an authorized attacker to bypass a security feature locally.

CVE-2026-78459 High · 7.8 CWE-122 Oct 13, 2026

Microsoft Internet Information Services Elevation of Privilege Vulnerability

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

CVE-2026-77910 High · 8.8 CWE-863 Oct 13, 2026

Microsoft Exchange Server Elevation of Privilege Vulnerability

Incorrect authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

CVE-2026-77902 High · 8.8 CWE-122 Oct 13, 2026

Microsoft Office Excel Remote Code Execution Vulnerability

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

CVE-2026-77496 High · 8.8 CWE-122 Oct 13, 2026

Windows Imaging Component Remote Code Execution Vulnerability

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

CVE-2026-73027 High · 7.8 CWE-15 Oct 13, 2026

Windows Setup Files Cleanup Elevation of Privilege Vulnerability

External control of system or configuration setting in Windows Setup Files Cleanup allows an authorized attacker to elevate privileges locally.

CVE-2026-72969 High · 7.0 CWE-416 Oct 13, 2026

Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability

Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

CVE-2026-72968 High · 7.0 CWE-416 Oct 13, 2026

Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability

Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

CVE-2026-72955 High · 7.0 CWE-416 Oct 13, 2026

Windows Application Compatibility Cache Elevation of Privilege Vulnerability

Use after free in Windows Application Compatibility Cache allows an authorized attacker to elevate privileges locally.

CVE-2026-72934 High · 7.0 CWE-416 Oct 13, 2026

Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability

Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

CVE-2026-71347 Medium · 6.4 CWE-362 Oct 13, 2026

Windows Security Center Elevation of Privilege Vulnerability

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

CVE-2026-70580 High · 8.8 CWE-306 Oct 13, 2026

Windows Credential Guard Spoofing Vulnerability

Missing authentication for critical function in Windows Credential Guard allows an authorized attacker to perform spoofing locally.

CVE-2026-70571 High · 8.1 CWE-121 Oct 13, 2026

Microsoft Exchange Server Remote Code Execution Vulnerability

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

CVE-2026-70566 High · 7.8 CWE-476 Oct 13, 2026

Windows Schannel Elevation of Privilege Vulnerability

Null pointer dereference in Windows Schannel allows an authorized attacker to elevate privileges locally.

CVE-2026-70343 High · 8.8 CWE-122 Oct 13, 2026

Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.

CVE-2026-70303 High · 7.8 CWE-787 Oct 13, 2026

Windows Kernel Elevation of Privilege Vulnerability

Out-of-bounds write in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-70302 High · 8.8 CWE-122 Oct 13, 2026

Microsoft Office Word Remote Code Execution Vulnerability

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

CVE-2026-70301 High · 8.8 CWE-122 Oct 13, 2026

Microsoft Office Word Remote Code Execution Vulnerability

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

CVE-2026-70300 Critical · 9.8 CWE-822 Oct 13, 2026

Microsoft Office Word Remote Code Execution Vulnerability

Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-70299 High · 8.8 CWE-863 Oct 13, 2026

Windows Bind Filter Driver Elevation of Privilege Vulnerability

Improper access control in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.