Microsoft vulnerabilities
Published CVEs affecting Microsoft products: 5261 record(s), with severity, exploitation and fixes.
Windows Server 2025 3001Windows Server 2025 (Server Core installation) 2987Windows 11 Version 24H2 2873Windows 11 24h2 2856Windows 11 Version 25H2 2825Windows Server 2022 2820Windows 11 25h2 2808Windows Server 2019 2708Windows Server 2019 (Server Core installation) 2657Windows 10 1809 2624Windows 10 Version 1809 2590Windows 10 Version 21H2 2567Windows 11 version 26H1 2555Windows 10 21h2 2551Windows 10 Version 22H2 2550Windows 10 22h2 2537Windows 11 26h1 2516Windows 11 version 23H2 2383Windows 11 23h2 2364Windows Server 2016 2297Windows Server 2016 (Server Core installation) 2233Windows 10 1607 2214Windows 10 Version 1607 2171Windows Server 2012 1885Windows Server 2012 R2 1807Windows Server 2012 R2 (Server Core installation) 1798Windows Server 2012 (Server Core installation) 1693Windows 11 Version 26H2 1007Windows 11 26h2 980Microsoft 365 Apps for Enterprise 576365 Apps 575Microsoft Office LTSC 2024 554Microsoft Office LTSC 2021 551Windows Server 2022 23h2 544Windows Server 2022, 23H2 Edition (Server Core installation) 543Office 2021 465Office 2024 465Microsoft Office LTSC for Mac 2021 459Microsoft Office LTSC for Mac 2024 459Microsoft Office 2019 386
CVE-2026-56170
High · 7.5
CWE-770 Jul 14, 2026
ASP.NET Core Denial of Service Vulnerability
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
CVE-2026-56169
High · 8.8
CWE-287 Jul 14, 2026
Windows Admin Center Elevation of Privilege Vulnerability
Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
CVE-2026-55948
High · 7.8
CWE-416 Jul 14, 2026
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55899
High · 7.8
CWE-20 Jul 14, 2026
Microsoft Excel Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55144
High · 7.1
CWE-325 Jul 14, 2026
Windows Cryptography API: Next Generation (CNG) Tampering Vulnerability
Missing cryptographic step in Windows CryptoAPI allows an authorized attacker to perform tampering locally.
CVE-2026-55014
High · 7.8
CWE-284 Jul 14, 2026
Windows Remote Help Defense Elevation of Privilege Vulnerability
Improper access control in Windows Remote Help Defense allows an authorized attacker to elevate privileges locally.
CVE-2026-55012
High · 7.8
CWE-122 Jul 14, 2026
Microsoft Defender Remote Code Execution Vulnerability
Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.
CVE-2026-56164
Critical · 9.8
KEV High · 63 Public exploit CWE-306 Jul 14, 2026
Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability
Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-56155
High · 7.8
KEV High · 45 CWE-1220 Jul 14, 2026
Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
Insufficient granularity of access control in Active Directory Federation Services (AD FS) allows an authorized attacker to elevate privileges locally.
CVE-2026-55011
High · 7.8
CWE-191 Jul 14, 2026
Microsoft Defender Remote Code Execution Vulnerability
Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.
CVE-2026-55009
High · 7.8
CWE-502 Jul 14, 2026
Microsoft Exchange Server Elevation of Privilege Vulnerability
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
CVE-2026-55008
Critical · 9.6
CWE-79 Jul 14, 2026
Microsoft Exchange Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-55006
High · 7.8
CWE-1220 Jul 14, 2026
Microsoft Exchange Server Elevation of Privilege Vulnerability
Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
CVE-2026-55004
High · 7.8
CWE-415 Jul 14, 2026
Windows Print Configuration Elevation of Privilege Vulnerability
Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.
CVE-2026-55003
Medium · 6.5
CWE-908 Jul 14, 2026
Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.
CVE-2026-55002
High · 8.8
CWE-73 Jul 14, 2026
Microsoft SQL Server Elevation of Privilege Vulnerability
External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-55005
High · 8.8
CWE-122 Jul 14, 2026
Microsoft Exchange Server Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
CVE-2026-55001
High · 7.8
CWE-295 Jul 14, 2026
Active Directory Domain Services Elevation of Privilege Vulnerability
Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate privileges locally.
CVE-2026-55000
Medium · 6.4
CWE-416 Jul 14, 2026
Windows USB Print Driver Elevation of Privilege Vulnerability
Use after free in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-54999
High · 8.8
CWE-362 Jul 14, 2026
Windows TCP/IP Remote Code Execution Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over an adjacent network.
CVE-2026-54997
Medium · 5.5
CWE-908 Jul 14, 2026
Windows SMB Information Disclosure Vulnerability
Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally.
CVE-2026-54996
High · 7.0
CWE-125 Jul 14, 2026
Windows USB Print Driver Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-54995
Critical · 9.8
CWE-416 Jul 14, 2026
Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.
CVE-2026-54993
High · 7.8
CWE-122 Jul 14, 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 locally.
CVE-2026-54992
High · 7.8
CWE-122 Jul 14, 2026
Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally.