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-2021-33773High· 7.8Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
CVE-2021-33772High· 7.5Windows TCP/IP Driver Denial of Service Vulnerability
Windows TCP/IP Driver Denial of Service Vulnerability
CVE-2021-33771High· 7.8CISA KEV0dayWindows Kernel Elevation of Privilege Vulnerability
Windows Kernel Elevation of Privilege Vulnerability
CVE-2021-33768High· 8.0Microsoft Exchange Server Elevation of Privilege Vulnerability
Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2021-33767High· 8.2Open Enclave SDK Elevation of Privilege Vulnerability
Open Enclave SDK Elevation of Privilege Vulnerability
CVE-2021-33766High· 7.3CISA KEV0dayPoCMicrosoft Exchange Server Information Disclosure Vulnerability
Microsoft Exchange Server Information Disclosure Vulnerability
CVE-2021-33765Medium· 6.2Windows Installer Spoofing Vulnerability
Windows Installer Spoofing Vulnerability
CVE-2021-33764Medium· 5.9Windows Key Distribution Center Information Disclosure Vulnerability
Windows Key Distribution Center Information Disclosure Vulnerability
CVE-2021-33763Medium· 5.5Windows Remote Access Connection Manager Information Disclosure Vulnerability
Windows Remote Access Connection Manager Information Disclosure Vulnerability
CVE-2021-33761High· 7.8Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
CVE-2021-33760Medium· 5.5Media Foundation Information Disclosure Vulnerability
Media Foundation Information Disclosure Vulnerability
CVE-2021-33759High· 7.8Windows Desktop Bridge Elevation of Privilege Vulnerability
Windows Desktop Bridge Elevation of Privilege Vulnerability
CVE-2021-33758High· 7.7Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability
CVE-2021-33757Medium· 5.3Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability
Windows Security Account Manager Remote Protocol Security Feature Bypass Vulnerability
CVE-2021-33756High· 8.8Windows DNS Snap-in Remote Code Execution Vulnerability
Windows DNS Snap-in Remote Code Execution Vulnerability
CVE-2021-33755Medium· 6.3Windows Hyper-V Denial of Service Vulnerability
Windows Hyper-V Denial of Service Vulnerability
CVE-2021-33754High· 8.0Windows DNS Server Remote Code Execution Vulnerability
Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-33753Medium· 4.7Microsoft Bing Search Spoofing Vulnerability
Microsoft Bing Search Spoofing Vulnerability
CVE-2021-33752High· 8.8Windows DNS Snap-in Remote Code Execution Vulnerability
Windows DNS Snap-in Remote Code Execution Vulnerability
CVE-2021-33751High· 7.00dayWindows Storage Spaces Controller Elevation of Privilege Vulnerability
Windows Storage Spaces Controller Elevation of Privilege Vulnerability
CVE-2021-33750High· 8.8Windows DNS Snap-in Remote Code Execution Vulnerability
Windows DNS Snap-in Remote Code Execution Vulnerability
CVE-2021-33749High· 8.8Windows DNS Snap-in Remote Code Execution Vulnerability
Windows DNS Snap-in Remote Code Execution Vulnerability
CVE-2021-33746High· 8.0Windows DNS Server Remote Code Execution Vulnerability
Windows DNS Server Remote Code Execution Vulnerability
CVE-2021-33745Medium· 6.5Windows DNS Server Denial of Service Vulnerability
Windows DNS Server Denial of Service Vulnerability
CVE-2021-33744Medium· 5.3Windows Secure Kernel Mode Security Feature Bypass Vulnerability
Windows Secure Kernel Mode Security Feature Bypass Vulnerability
CVE-2021-33743High· 7.8Windows Projected File System Elevation of Privilege Vulnerability
Windows Projected File System Elevation of Privilege Vulnerability
CVE-2021-33740High· 7.8Windows Media Remote Code Execution Vulnerability
Windows Media Remote Code Execution Vulnerability
CVE-2021-31984High· 7.6Power BI Remote Code Execution Vulnerability
Power BI Remote Code Execution Vulnerability
CVE-2021-31979High· 7.8CISA KEV0dayWindows Kernel Elevation of Privilege Vulnerability
Windows Kernel Elevation of Privilege Vulnerability
CVE-2021-31961Medium· 6.10dayWindows InstallService Elevation of Privilege Vulnerability
Windows InstallService Elevation of Privilege Vulnerability