microsoft has 2,953 CVEs on record between 2013 and 2026. Disclosure cadence is accelerating: 2137 in the last 90 days against 419 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
- 2137 prev 419
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-2026-49792High· 7.8Windows Resilient File System (ReFS) Remote Code Execution Vulnerability
Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
CVE-2026-50392High· 7.0Windows Secure Kernel Mode Elevation of Privilege Vulnerability
Use after free in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
CVE-2026-50384High· 7.0Windows Clip Service Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Clip Service allows an authorized attacker to elevate privileges locally.
CVE-2026-50381Medium· 5.5Composite Image File System driver (cimfs.sys) Information Disclosure Vulnerability
Access of resource using incompatible type ('type confusion') in Composite Image File System Driver allows an authorized attacker to disclose information locally.
CVE-2026-50372High· 7.0Windows Redirected Drive Buffering System Elevation of Privilege Vulnerability
Buffer over-read in Windows Redirected Drive Buffering allows an authorized attacker to elevate privileges locally.
CVE-2026-50364High· 7.3Windows Backup Service Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in Windows Server Backup allows an authorized attacker to elevate privileges locally.
CVE-2026-50356High· 7.0Microsoft Windows App Store Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.
CVE-2026-50354High· 7.1Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-50351High· 7.8Windows Audio Compression Manager (ACM) Elevation of Privilege Vulnerability
Improper access control in Windows Audio Compression Manager (ACM) allows an authorized attacker to elevate privileges locally.
CVE-2026-50350Medium· 5.5Windows Trusted Runtime Interface Driver Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Trusted Runtime Interface Driver allows an authorized attacker to disclose information locally.
CVE-2026-50342High· 8.8Windows MIDI Service Module Elevation of Privileges Vulnerability
Improper access control in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
CVE-2026-50332High· 7.8Windows Kernel Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-50325High· 7.0Win32k Elevation of Privilege Vulnerability
Improper access control in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-50318High· 7.8Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability
Stack-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.
CVE-2026-50316Medium· 5.5Windows Kernel Information Disclosure Vulnerability
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
CVE-2026-50305High· 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-2026-50303Medium· 5.5Windows Key Guard Security Feature Bypass Vulnerability
Use of a cryptographic primitive with a risky implementation in Windows Key Guard allows an authorized attacker to bypass a security feature locally.
CVE-2026-50302Medium· 4.2Windows Cryptographic Services Security Feature Bypass Vulnerability
Improper certificate validation in Windows Cryptographic Services allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-50300Medium· 5.5Windows DWM Core Library Information Disclosure Vulnerability
Integer underflow (wrap or wraparound) in Windows Kernel allows an authorized attacker to disclose information locally.
CVE-2026-50298Medium· 6.8Windows Spaceport.sys Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows Spaceport.sys allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-50297High· 7.0Win32k Elevation of Privilege Vulnerability
Improper access control in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-50296High· 7.0DirectX Graphics Kernel Elevation of Privilege Vulnerability
Use after free in Graphics Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-50295Medium· 5.5Windows Zero Trust DNS Security Feature Bypass Vulnerability
Improper privilege management in Microsoft Windows DNS allows an authorized attacker to bypass a security feature locally.
CVE-2026-50293High· 7.8Windows Internal Task Bar Elevation of Privilege Vulnerability
Use after free in Windows Internal Task Bar allows an authorized attacker to elevate privileges locally.
CVE-2026-49808High· 7.8Windows Kernel Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-49807Medium· 6.2Windows DirectX Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows DirectX allows an unauthorized attacker to disclose information locally.
CVE-2026-50440High· 7.8Windows Audio Service Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Audio Service allows an authorized attacker to elevate privileges locally.
CVE-2026-50419Low· 3.3Windows Kernel Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Kernel allows an authorized attacker to disclose information locally.
CVE-2026-50412High· 7.8Windows NTFS Elevation of Privilege Vulnerability
Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-50407High· 7.8Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.