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-2026-72954High· 7.5Use after free in Windows Deployment Services allows an authorized attacker to execute code over a network.
Use after free in Windows Deployment Services allows an authorized attacker to execute code over a network.
CVE-2026-72953High· 7.8Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-72952High· 7.0Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to execute code locally.
Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to execute code locally.
CVE-2026-72950High· 8.8Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine
Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine
CVE-2026-72949High· 7.5Null pointer dereference in Windows SMB Server Network Transport Driver (srvnet.sys) allows an unauthorized attacker to deny service over a network.
Null pointer dereference in Windows SMB Server Network Transport Driver (srvnet.sys) allows an unauthorized attacker to deny service over a network.
CVE-2026-72948Medium· 6.7Relative path traversal in Windows DNS allows an authorized attacker to elevate privileges locally.
Relative path traversal in Windows DNS allows an authorized attacker to elevate privileges locally.
CVE-2026-72947Medium· 6.4Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.
Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.
CVE-2026-72946High· 7.8Heap-based buffer overflow in Storage Port Driver allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Storage Port Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-72945Medium· 5.5Use of uninitialized resource in Windows Task Scheduler allows an authorized attacker to disclose information locally.
Use of uninitialized resource in Windows Task Scheduler allows an authorized attacker to disclose information locally.
CVE-2026-72944High· 7.8Heap-based buffer overflow in Windows Fax Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Fax Service allows an authorized attacker to elevate privileges locally.
CVE-2026-72943High· 7.5Use after free in Windows Deployment Services allows an authorized attacker to execute code over a network.
Use after free in Windows Deployment Services allows an authorized attacker to execute code over a network.
CVE-2026-72942Medium· 6.5Out-of-bounds read in Windows Spaceport.sys allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Windows Spaceport.sys allows an unauthorized attacker to disclose information over a network.
CVE-2026-72941High· 7.8Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.
CVE-2026-72940High· 8.8Heap-based buffer overflow in Windows Schannel allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Schannel allows an unauthorized attacker to execute code over a network.
CVE-2026-72939Medium· 6.5Null pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to deny service over a network.
Null pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to deny service over a network.
CVE-2026-72938Medium· 6.5Access of resource using incompatible type ('type confusion') in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
Access of resource using incompatible type ('type confusion') in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
CVE-2026-72937Medium· 5.5Out-of-bounds read in Storage Port Driver allows an authorized attacker to disclose information locally.
Out-of-bounds read in Storage Port Driver allows an authorized attacker to disclose information locally.
CVE-2026-72936High· 8.1Use after free in Windows SMB Client allows an unauthorized attacker to execute code over a network.
Use after free in Windows SMB Client allows an unauthorized attacker to execute code over a network.
CVE-2026-72935Medium· 6.7Out-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-2026-72933High· 8.8Heap-based buffer overflow in Microsoft WDAC OLE DB provider for SQL allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft WDAC OLE DB provider for SQL allows an unauthorized attacker to execute code over a network.
CVE-2026-72932High· 7.5Buffer over-read in Windows Message Queuing Queue Manager allows an unauthorized attacker to disclose information over a network.
Buffer over-read in Windows Message Queuing Queue Manager allows an unauthorized attacker to disclose information over a network.
CVE-2026-72931Medium· 4.7Missing release of resource after effective lifetime in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to deny service locally.
Missing release of resource after effective lifetime in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to deny service locally.
CVE-2026-72930High· 7.0Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to execute code locally.
Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to execute code locally.
CVE-2026-72929High· 7.8Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges locally.
Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges locally.
CVE-2026-72928High· 7.5Use after free in Windows DNS allows an authorized attacker to execute code over a network.
Use after free in Windows DNS allows an authorized attacker to execute code over a network.
CVE-2026-72927Medium· 6.7Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.
CVE-2026-72926High· 7.0Use after free in Windows Internet Connection Sharing (ICS) allows an authorized attacker to elevate privileges locally.
Use after free in Windows Internet Connection Sharing (ICS) allows an authorized attacker to elevate privileges locally.
CVE-2026-72923High· 7.5The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .NET along with common serializers to extract raw OpenAPI JSON and YAML documents from the model
The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .NET along with common serializers to extract raw OpenAPI JSON and YAML documents from the model. In Microsoft.OpenApi.Readers versions before 1.6.30 and Microso…
CVE-2026-71353High· 7.0Double free in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
Double free in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
CVE-2026-71352High· 8.8Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authorized attacker to execute code over a network.
Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authorized attacker to execute code over a network.