Microsoft has 4,599 CVEs on record between 2012 and 2026. Disclosure cadence is accelerating: 2930 in the last 90 days against 932 in the 90 before. The busiest recent month was October 2026 with 1482. The median CVSS is 7.8 (high), with 273 rated critical. 2% have been exploited in the wild, in line with the corpus average. The median gap from publication to a KEV listing is 112 days (95 cases). The dominant weakness classes are CWE-122 (931) and CWE-416 (851). Most affected products: windows_10_1607 (988), Windows 10 Version 1607 (877), 365_apps (267).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 2% vs 1% corpus
- Median CVSS
- 7.8
- Publish → KEV
- 112 d median(95)
- Last 90 days
- 2930 prev 932
Weakness classes
Products
- windows_10_1607 988
- Windows 10 Version 1607 877
- 365_apps 267
- Microsoft 365 Apps for Enterprise 232
- Windows 10 Version 1809 199
- windows_10_1809 174
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.
4599 CVEsRSS
CVE-2026-50387High· 7.8Stack-based buffer overflow in Windows GDI allows an authorized attacker to elevate privileges locally.
Stack-based buffer overflow in Windows GDI allows an authorized attacker to elevate privileges locally.
CVE-2026-50382High· 8.8DirectX Graphics Kernel Remote Code Execution Vulnerability
Untrusted pointer dereference in Windows DirectX allows an authorized attacker to execute code locally.
CVE-2026-50379High· 7.5Windows Media Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges over a network.
CVE-2026-50378High· 7.8Windows Key Guard Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Key Guard allows an authorized attacker to elevate privileges locally.
CVE-2026-50369High· 8.8PoCWindows Remote Desktop Services Elevation of Privilege Vulnerability
Use after free in Windows Remote Desktop Services allows an authorized attacker to elevate privileges over a network.
CVE-2026-50365High· 8.0Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability
Improper authentication in Windows RPC API allows an unauthorized attacker to elevate privileges over an adjacent network.
CVE-2026-50352Medium· 5.5Windows Cryptographic Services Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Cryptographic Services allows an authorized attacker to disclose information locally.
CVE-2026-50346High· 7.8Netlogon RPC Elevation of Privilege Vulnerability
Improper authorization in RPC Runtime allows an authorized attacker to elevate privileges locally.
CVE-2026-50344High· 7.8Windows OLE Elevation of Privilege Vulnerability
Improper authorization in Windows OLE allows an authorized attacker to elevate privileges locally.
CVE-2026-50334Medium· 5.5Windows Push Notification Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Notification allows an authorized attacker to disclose information locally.
CVE-2026-50473Medium· 5.5Windows File Explorer Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
CVE-2026-50466High· 7.8Microsoft Brokering File System Elevation of Privilege Vulnerability
Use after free in Windows Brokering File System allows an authorized attacker to elevate privileges locally.
CVE-2026-50465High· 7.1Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.
Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.
CVE-2026-50462High· 7.8Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
External control of file name or path in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2026-50457High· 7.8Windows Runtime Elevation of Privilege Vulnerability
Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
CVE-2026-50456Medium· 5.5Windows File Explorer Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
CVE-2026-50455Medium· 5.5Universal Plug and Play (upnp.dll) Information Disclosure Vulnerability
Use of uninitialized resource in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
CVE-2026-50451High· 7.1Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
CVE-2026-50442Medium· 5.5Windows File Explorer Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.
CVE-2026-50441High· 7.8Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability
Untrusted pointer dereference in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.
CVE-2026-50439High· 8.1Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability
Use after free in Microsoft Message Queuing Queue Manager allows an unauthorized attacker to execute code over a network.
CVE-2026-50435High· 7.8Windows Overlay Filter Elevation of Privilege Vulnerability
Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
CVE-2026-50432Medium· 5.3Window Virtual Filtering Platform (VFP) Denial of Service Vulnerability
Use after free in Windows Virtual Filtering Platform (VFP) allows an authorized attacker to deny service over a network.
CVE-2026-50427High· 7.8Content Delivery Manager Elevation of Privilege Vulnerability
Use after free in Content Delivery Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-50426Medium· 6.8Windows DNS Server Remote Code Execution Vulnerability
Relative path traversal in DNS Server allows an authorized attacker to execute code over an adjacent network.
CVE-2026-50417High· 7.8Windows NTFS Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
CVE-2026-50413High· 8.8Windows Runtime Elevation of Privilege Vulnerability
Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
CVE-2026-50409Medium· 5.5Windows Overlay Filter Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Overlay Filter allows an authorized attacker to disclose information locally.
CVE-2026-50402High· 7.8PoCNTFS Elevation of Privilege Vulnerability
Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-50399High· 7.8Windows Kernel Elevation of Privilege Vulnerability
Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.