Microsoft has 4,599 CVEs on record between 2012 and 2026. Disclosure cadence is accelerating: 2930 in the last 90 days against 934 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 934
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-2026-69958Medium· 6.8Heap-based buffer overflow in Windows Overlay Filter allows an unauthorized attacker to execute code with a physical attack.
Heap-based buffer overflow in Windows Overlay Filter allows an unauthorized attacker to execute code with a physical attack.
CVE-2026-69957High· 7.8Integer 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-2026-69955Medium· 6.5Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to disclose information over a network.
CVE-2026-69954Medium· 5.5Buffer over-read in Windows Overlay Filter allows an authorized attacker to disclose information locally.
Buffer over-read in Windows Overlay Filter allows an authorized attacker to disclose information locally.
CVE-2026-69953High· 7.8Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
CVE-2026-69952High· 7.8Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
CVE-2026-69950High· 7.8Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
CVE-2026-69949High· 7.8Heap-based buffer overflow in Windows Client for NFS allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Client for NFS allows an authorized attacker to elevate privileges locally.
CVE-2026-69947Medium· 6.8Heap-based buffer overflow in Windows Overlay Filter allows an unauthorized attacker to execute code with a physical attack.
Heap-based buffer overflow in Windows Overlay Filter allows an unauthorized attacker to execute code with a physical attack.
CVE-2026-69945High· 8.8Missing authorization in Windows AppX Deployment Extensions allows an authorized attacker to elevate privileges locally.
Missing authorization in Windows AppX Deployment Extensions allows an authorized attacker to elevate privileges locally.
CVE-2026-69943High· 8.8Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-69942High· 7.8Buffer over-read in Windows Overlay Filter allows an authorized attacker to execute code locally.
Buffer over-read in Windows Overlay Filter allows an authorized attacker to execute code locally.
CVE-2026-69940Medium· 6.5Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to disclose information over a network.
CVE-2026-69935High· 7.0Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.
Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.
CVE-2026-69934High· 7.8Integer overflow or wraparound in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.
Integer overflow or wraparound in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.
CVE-2026-69931High· 7.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Storage allows an authorized attacker to elevate privileges locally.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Storage allows an authorized attacker to elevate privileges locally.
CVE-2026-69926High· 7.8Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-69923High· 7.8Uncontrolled search path element in Windows AI allows an authorized attacker to elevate privileges locally.
Uncontrolled search path element in Windows AI allows an authorized attacker to elevate privileges locally.
CVE-2026-69922Medium· 6.5Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-69919Medium· 5.5Out-of-bounds read in Windows Cryptographic Services allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows Cryptographic Services allows an authorized attacker to disclose information locally.
CVE-2026-69918High· 8.8Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges locally.
CVE-2026-69916High· 7.8Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally.
Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-69915High· 7.0Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.
Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-69914Medium· 5.5Out-of-bounds read in Windows AppX Deployment Service allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows AppX Deployment Service allows an authorized attacker to disclose information locally.
CVE-2026-69913High· 8.1Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
CVE-2026-69909High· 7.8Heap-based buffer overflow in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.
CVE-2026-69905Medium· 5.5Missing authorization in Windows AppX Deployment Service allows an authorized attacker to perform tampering locally.
Missing authorization in Windows AppX Deployment Service allows an authorized attacker to perform tampering locally.
CVE-2026-69902Medium· 6.7Untrusted pointer dereference in Windows NTFS allows an authorized attacker to execute code locally.
Untrusted pointer dereference in Windows NTFS allows an authorized attacker to execute code locally.
CVE-2026-69898High· 7.8Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-69886Critical· 9.8Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code over a network.