Microsoft has 2,953 CVEs on record between 2013 and 2026. Disclosure cadence is accelerating: 2136 in the last 90 days against 414 in the 90 before. The busiest recent month was September 2026 with 1005. The median CVSS is 7.8 (high), with 178 rated critical. 3% have been exploited in the wild, in line with the corpus average. The median gap from publication to a KEV listing is 113 days (91 cases). The dominant weakness classes are CWE-122 (585) and CWE-416 (512). Most affected products: windows_10_1607 (644), Windows 10 Version 1607 (481), Microsoft 365 Apps for Enterprise (209).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 3% vs 1% corpus
- Median CVSS
- 7.8
- Publish → KEV
- 113 d median(91)
- Last 90 days
- 2136 prev 414
Weakness classes
Products
- windows_10_1607 644
- Windows 10 Version 1607 481
- Microsoft 365 Apps for Enterprise 209
- windows_10 122
- 365_apps 115
- windows_10_1809 106
Worst active — by depth score
CVE-2025-53770Critical· 9.8Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware that an exploit for CVE-2025-53770 exists in the wild. Microsoft is preparing…100CVE-2021-38647Critical· 9.8Open Management Infrastructure (OMI) Remote Code Execution Vulnerability100CVE-2021-34473Critical· 9.1Microsoft Exchange Server Remote Code Execution Vulnerability100CVE-2021-26855Critical· 9.1Microsoft Exchange Server Remote Code Execution Vulnerability100CVE-2020-0796Critical· 10.0A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.100
Microsoft vulnerabilities
CVEs affecting Microsoft, newest first. Open any entry for full detail, references, and exploit status.
2953 CVEsRSS
CVE-2026-26166High· 7.0Windows Shell Elevation of Privilege Vulnerability
Double free in Windows Shell allows an authorized attacker to elevate privileges locally.
CVE-2026-26183High· 7.8Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability
Improper access control in Windows RPC API allows an authorized attacker to elevate privileges locally.
CVE-2026-26181High· 7.8Microsoft Brokering File System Elevation of Privilege Vulnerability
Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
CVE-2026-26179High· 7.8PoCWindows Kernel Elevation of Privilege Vulnerability
Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-27915High· 7.8Windows UPnP Device Host Elevation of Privilege Vulnerability
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
CVE-2026-27908High· 7.0Windows TDI Translation Driver (tdx.sys) Elevation of Privilege Vulnerability
Use after free in Windows TDI Translation Driver (tdx.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-27907High· 7.8Windows Storage Spaces Controller Elevation of Privilege Vulnerability
Integer underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
CVE-2026-27906Medium· 4.4Windows Hello Security Feature Bypass Vulnerability
Improper input validation in Windows Hello allows an authorized attacker to bypass a security feature locally.
CVE-2026-27926High· 7.0Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-27921High· 7.0Windows TDI Translation Driver (tdx.sys) Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
CVE-2026-27917High· 7.0Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) Elevation of Privilege Vulnerability
Use after free in Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-27931Medium· 5.5Windows GDI Information Disclosure Vulnerability
Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally.
CVE-2026-27919High· 7.8Windows UPnP Device Host Elevation of Privilege Vulnerability
Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
CVE-2026-27918High· 7.8Windows Shell Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Shell allows an authorized attacker to elevate privileges locally.
CVE-2026-32071High· 7.5Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
CVE-2026-27927High· 7.8Windows Projected File System Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Projected File System allows an authorized attacker to elevate privileges locally.
CVE-2026-27924High· 7.8Desktop Window Manager Elevation of Privilege Vulnerability
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-32082High· 7.0Windows Simple Search and Discovery Protocol (SSDP) Service Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service allows an authorized attacker to elevate privileges locally.
CVE-2026-32075High· 7.0Windows UPnP Device Host Elevation of Privilege Vulnerability
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
CVE-2026-32073High· 7.0Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2026-27929High· 7.0Windows LUA File Virtualization Filter Driver Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows LUAFV allows an authorized attacker to elevate privileges locally.
CVE-2026-32152High· 7.8Desktop Window Manager Elevation of Privilege Vulnerability
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-32083High· 7.0Windows Simple Search and Discovery Protocol (SSDP) Service Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service allows an authorized attacker to elevate privileges locally.
CVE-2026-32081Medium· 5.5Package Catalog Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
CVE-2026-32090High· 7.8Windows Speech Brokered Api Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.
CVE-2026-32089High· 7.8Windows Speech Brokered Api Elevation of Privilege Vulnerability
Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.
CVE-2026-32085Medium· 5.5Remote Procedure Call Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows an authorized attacker to disclose information locally.
CVE-2026-32154High· 7.8Desktop Window Manager Elevation of Privilege Vulnerability
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-32093High· 7.0Windows Function Discovery Service (fdwsd.dll) Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
CVE-2026-32087High· 7.0Windows Function Discovery Service (fdwsd.dll) Elevation of Privilege Vulnerability
Heap-based buffer overflow in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.