Microsoft vulnerabilities

Published CVEs affecting Microsoft products: 5241 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 11 24h2 2310 Windows Server 2016 2297 Windows 11 25h2 2262 Windows Server 2016 (Server Core installation) 2243 Windows 10 Version 1607 2181 Windows 10 1809 2144 Windows 10 21h2 2062 Windows 10 22h2 2048 Windows 11 26h1 1974 Windows Server 2012 1865 Windows 11 23h2 1844 Windows 10 1607 1827 Windows Server 2012 R2 1817 Windows Server 2012 R2 (Server Core installation) 1808 Windows Server 2012 (Server Core installation) 1703 Windows 11 Version 26H2 1007 Microsoft 365 Apps for Enterprise 577 365 Apps 575 Microsoft Office LTSC 2024 557 Microsoft Office LTSC 2021 554 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 451 Microsoft Office LTSC for Mac 2024 450 Windows 11 26h2 443 Microsoft Office 2019 386

Exploited only (KEV) →

CVE-2026-78521 High · 8.8 CWE-122 Sep 8, 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-2026-78520 Medium · 6.5 CWE-125 Sep 8, 2026

Microsoft Office Outlook Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2026-78519 High · 8.8 CWE-908 Sep 8, 2026

Microsoft Office Outlook Remote Code Execution Vulnerability

Use of uninitialized resource in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2026-78518 High · 8.8 CWE-20 Sep 8, 2026

Microsoft Office Excel Remote Code Execution Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-78517 High · 8.8 CWE-122 Sep 8, 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-2026-78516 Medium · 4.3 CWE-126 Sep 8, 2026

Windows Storage Information Disclosure Vulnerability

Insertion of sensitive information into externally-accessible file or directory in Windows Storage allows an authorized attacker to disclose information locally.

CVE-2026-78515 Medium · 6.5 CWE-125 Sep 8, 2026

Microsoft Office Excel Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

CVE-2026-78514 High · 8.8 CWE-416 Sep 8, 2026

Microsoft Office Word Remote Code Execution Vulnerability

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

CVE-2026-78513 Medium · 5.5 CWE-125 Sep 8, 2026

Microsoft Office PowerPoint Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally.

CVE-2026-78512 High · 8.8 CWE-122 Sep 8, 2026

Microsoft Office Word Remote Code Execution Vulnerability

Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-78511 High · 8.8 CWE-122 Sep 8, 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-2026-78510 High · 8.4 CWE-122 Sep 8, 2026

Microsoft Outlook and Word Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-78509 Critical · 9.8 CWE-122 Sep 8, 2026

Microsoft Office Outlook Remote Code Execution Vulnerability

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

CVE-2026-78508 Medium · 4.6 CWE-125 Sep 8, 2026

Windows CD-ROM Driver Information Disclosure Vulnerability

Out-of-bounds read in Windows CD-ROM Driver allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-78507 High · 8.8 CWE-416 Sep 8, 2026

Microsoft Office Word Remote Code Execution Vulnerability

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

CVE-2026-78506 Medium · 5.5 CWE-170 Sep 8, 2026

Microsoft Office Word Information Disclosure Vulnerability

Improper null termination in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVE-2026-78505 High · 8.8 CWE-122 Sep 8, 2026

Microsoft Office Remote Code Execution Vulnerability

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

CVE-2026-78504 High · 8.8 CWE-121 Sep 8, 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-2026-78503 Medium · 6.5 CWE-125 Sep 8, 2026

Microsoft Office Word Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

CVE-2026-78502 Medium · 6.5 CWE-125 Sep 8, 2026

Microsoft Office Word Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

CVE-2026-78464 High · 7.0 CWE-367 Sep 8, 2026

Windows MIDI Service Module Elevation of Privileges Vulnerability

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

CVE-2026-78463 High · 8.8 CWE-94 Sep 8, 2026

Remote Desktop Client Remote Code Execution Vulnerability

Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-78462 High · 8.8 CWE-639 Sep 8, 2026

Visual Studio Code Security Feature Bypass Vulnerability

Authorization bypass through user-controlled key in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-78461 High · 7.4 CWE-22 Sep 8, 2026

Visual Studio Code Security Feature Bypass Vulnerability

Improper limitation of a pathname to a restricted directory ('path traversal') in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-78456 High · 8.8 CWE-122 Sep 8, 2026

SQL Server Remote Code Execution Vulnerability

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.