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 (635), Windows 10 Version 1607 (490), 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 635
- Windows 10 Version 1607 490
- Microsoft 365 Apps for Enterprise 209
- windows_10 122
- 365_apps 115
- windows_10_1809 103
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-2026-72939Medium· 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· 7.5In Microsoft.OpenApi.YamlReader from 2.0.0-preview.11 until 2.12.0 and from 3.0.0 until 3.10.0, and in Microsoft.OpenApi.Readers prior to 1.6.30, a small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled …
In Microsoft.OpenApi.YamlReader from 2.0.0-preview.11 until 2.12.0 and from 3.0.0 until 3.10.0, and in Microsoft.OpenApi.Readers prior to 1.6.30, a small YAML OpenAPI document containing nested anchors and aliases can cause uncontrolled …
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.
CVE-2026-71351High· 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-2026-71350Medium· 6.8Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.
Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.
CVE-2026-71349Medium· 6.8Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.
Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.
CVE-2026-71348Medium· 6.8Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.
Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.
CVE-2026-71345High· 7.8Out-of-bounds write in Windows Spaceport.sys allows an authorized attacker to execute code locally.
Out-of-bounds write in Windows Spaceport.sys allows an authorized attacker to execute code locally.
CVE-2026-71343High· 7.8Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to execute code locally.
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to execute code locally.
CVE-2026-71342High· 7.0Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-71341Medium· 5.5Out-of-bounds read in Windows Partition Management Driver allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows Partition Management Driver allows an authorized attacker to disclose information locally.
CVE-2026-71340High· 7.0Use after free in Windows File History Service allows an authorized attacker to elevate privileges locally.
Use after free in Windows File History Service allows an authorized attacker to elevate privileges locally.
CVE-2026-71339Medium· 6.7Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
CVE-2026-71338Medium· 6.4Double free in Windows Failover Cluster allows an authorized attacker to elevate privileges locally.
Double free in Windows Failover Cluster allows an authorized attacker to elevate privileges locally.
CVE-2026-71337High· 7.8Stack-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges locally.
Stack-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges locally.
CVE-2026-71336High· 8.8Integer overflow or wraparound in Windows Work Folder Service allows an authorized attacker to execute code over a network.
Integer overflow or wraparound in Windows Work Folder Service allows an authorized attacker to execute code over a network.
CVE-2026-71334High· 7.8Heap-based buffer overflow in Windows NFS Portmapper allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows NFS Portmapper allows an authorized attacker to elevate privileges locally.