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 (638), Windows 10 Version 1607 (487), 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 638
- Windows 10 Version 1607 487
- Microsoft 365 Apps for Enterprise 209
- windows_10 122
- 365_apps 115
- windows_10_1809 105
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-2026-69402High· 7.3Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-69401High· 7.0Use after free in Audio Video Control Transport Protocol allows an authorized attacker to elevate privileges locally.
Use after free in Audio Video Control Transport Protocol allows an authorized attacker to elevate privileges locally.
CVE-2026-69398High· 7.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69397High· 7.5Use after free in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
Use after free in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.
CVE-2026-69396High· 7.1Use after free in Windows NDIS allows an authorized attacker to elevate privileges over a network.
Use after free in Windows NDIS allows an authorized attacker to elevate privileges over a network.
CVE-2026-69395Medium· 6.5Use of externally-controlled format string in Active Directory Certificate Services (AD CS) allows an authorized attacker to disclose information over a network.
Use of externally-controlled format string in Active Directory Certificate Services (AD CS) allows an authorized attacker to disclose information over a network.
CVE-2026-69394High· 7.0Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69393Medium· 5.7Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information over a network.
Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information over a network.
CVE-2026-69392High· 7.8Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.
Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.
CVE-2026-69391High· 7.8Stack-based buffer overflow in Windows Broker Infrastructure Service allows an authorized attacker to elevate privileges locally.
Stack-based buffer overflow in Windows Broker Infrastructure Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69390Medium· 5.5Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.
CVE-2026-69389High· 7.8Heap-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges locally.
CVE-2026-69388High· 7.0Use after free in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.
Use after free in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69386High· 8.8Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
CVE-2026-69385High· 7.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
CVE-2026-69384High· 7.1Null pointer dereference in Virtual Hard Disk (VHD) Miniport Driver allows an unauthorized attacker to deny service locally.
Null pointer dereference in Virtual Hard Disk (VHD) Miniport Driver allows an unauthorized attacker to deny service locally.
CVE-2026-69383High· 7.0External control of file name or path in Windows Shell allows an authorized attacker to elevate privileges locally.
External control of file name or path in Windows Shell allows an authorized attacker to elevate privileges locally.
CVE-2026-69382Medium· 5.9Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.
Use of a broken or risky cryptographic algorithm in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.
CVE-2026-69381Medium· 4.6Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose information with a physical attack.
Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose information with a physical attack.
CVE-2026-69380High· 8.1Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-69379High· 7.0Improper link resolution before file access ('link following') in Windows NTFS allows an authorized attacker to elevate privileges locally.
Improper link resolution before file access ('link following') in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-69378High· 7.5Uncontrolled recursion in Microsoft Exchange Server allows an unauthorized attacker to deny service over a network.
Uncontrolled recursion in Microsoft Exchange Server allows an unauthorized attacker to deny service over a network.
CVE-2026-69377High· 7.8Missing authorization in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
Missing authorization in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
CVE-2026-69376Medium· 5.5Out-of-bounds read in Microsoft Standard XPS allows an authorized attacker to disclose information locally.
Out-of-bounds read in Microsoft Standard XPS allows an authorized attacker to disclose information locally.
CVE-2026-69375Medium· 6.5Authorization bypass through user-controlled key in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.
Authorization bypass through user-controlled key in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.
CVE-2026-69374Medium· 6.5Allocation of resources without limits or throttling in Windows SMB Server allows an authorized attacker to deny service over a network.
Allocation of resources without limits or throttling in Windows SMB Server allows an authorized attacker to deny service over a network.
CVE-2026-69373Medium· 6.7Integer overflow or wraparound in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
Integer overflow or wraparound in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
CVE-2026-69372Medium· 5.7Out-of-bounds read in Windows Network File System allows an authorized attacker to deny service over a network.
Out-of-bounds read in Windows Network File System allows an authorized attacker to deny service over a network.
CVE-2026-69371High· 8.0Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges over a network.
Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges over a network.
CVE-2026-69369Medium· 5.5Out-of-bounds read in Windows DNS allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows DNS allows an authorized attacker to disclose information locally.