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-2026-69284High· 7.8Heap-based buffer overflow in Windows DCOM Server allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows DCOM Server allows an authorized attacker to elevate privileges locally.
CVE-2026-69283High· 7.8Heap-based buffer overflow in Windows CD-ROM Driver allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows CD-ROM Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-69282High· 8.8Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-69281High· 7.0Use after free in Windows License Manager allows an authorized attacker to elevate privileges locally.
Use after free in Windows License Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-69280High· 7.0Use after free in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
Use after free in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
CVE-2026-69279High· 7.0Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-69277High· 7.8Stack-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.
Stack-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.
CVE-2026-69276Critical· 9.8Integer underflow (wrap or wraparound) in Microsoft UxTheme Library (uxtheme.dll) allows an unauthorized attacker to execute code over a network.
Integer underflow (wrap or wraparound) in Microsoft UxTheme Library (uxtheme.dll) allows an unauthorized attacker to execute code over a network.
CVE-2026-69275High· 7.0Use after free in Kernel Streaming WOW Thunk Service Driver allows an authorized attacker to elevate privileges locally.
Use after free in Kernel Streaming WOW Thunk Service Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-69274High· 7.1Use after free in Windows Win32K allows an authorized attacker to elevate privileges over a network.
Use after free in Windows Win32K allows an authorized attacker to elevate privileges over a network.
CVE-2026-69273High· 8.8Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-69272High· 7.1Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
CVE-2026-69271High· 8.0Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
CVE-2026-69270High· 7.8Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-69269High· 7.8Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
Integer underflow (wrap or wraparound) in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
CVE-2026-69268High· 8.8Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-69267Medium· 6.5Insufficient granularity of access control in Windows Connected User Experiences and Telemetry allows an authorized attacker to disclose information locally.
Insufficient granularity of access control in Windows Connected User Experiences and Telemetry allows an authorized attacker to disclose information locally.
CVE-2026-69266High· 8.8Integer overflow or wraparound in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
Integer overflow or wraparound in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
CVE-2026-69265High· 7.8Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.
Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-68898Medium· 6.5Out-of-bounds read in Windows iSCSI allows an unauthorized attacker to deny service over a network.
Out-of-bounds read in Windows iSCSI allows an unauthorized attacker to deny service over a network.
CVE-2026-68897High· 7.0Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
CVE-2026-68896High· 7.8Absolute path traversal in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
Absolute path traversal in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
CVE-2026-68895Medium· 5.5Numeric truncation error in Internet Storage Name Service allows an authorized attacker to disclose information locally.
Numeric truncation error in Internet Storage Name Service allows an authorized attacker to disclose information locally.
CVE-2026-68894High· 8.0Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges over a network.
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges over a network.
CVE-2026-68893High· 7.1Use after free in Windows Remote Desktop Licensing Service allows an authorized attacker to elevate privileges over a network.
Use after free in Windows Remote Desktop Licensing Service allows an authorized attacker to elevate privileges over a network.
CVE-2026-68892High· 7.8Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
CVE-2026-68891Medium· 4.7Out-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-2026-68890High· 7.8Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
CVE-2026-68889High· 7.1Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
CVE-2026-68888High· 7.8Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally.