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-2026-70296Critical· 9.8Out-of-bounds write in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
Out-of-bounds write in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
CVE-2026-70290Medium· 5.5Use of uninitialized resource in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
Use of uninitialized resource in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
CVE-2026-70289High· 7.8Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
CVE-2026-70283High· 7.0Incorrect authorization in Windows Win32K allows an authorized attacker to elevate privileges locally.
Incorrect authorization in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-70203High· 8.8Heap-based buffer overflow in Windows Media Player allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Media Player allows an unauthorized attacker to execute code over a network.
CVE-2026-70145Medium· 5.5Out-of-bounds read in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.
Out-of-bounds read in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.
CVE-2026-70124Medium· 5.9Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.
CVE-2026-70091Medium· 5.9Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to deny service over a network.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to deny service over a network.
CVE-2026-70065High· 7.5Missing release of memory after effective lifetime in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
Missing release of memory after effective lifetime in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
CVE-2026-70019Medium· 6.5Windows hard link in Windows Compressed Folder allows an unauthorized attacker to disclose information over a network.
Windows hard link in Windows Compressed Folder allows an unauthorized attacker to disclose information over a network.
CVE-2026-69989High· 8.1Use after free in DNS Server allows an unauthorized attacker to execute code over a network.
Use after free in DNS Server allows an unauthorized attacker to execute code over a network.
CVE-2026-69930Medium· 5.9Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.
CVE-2026-69929Medium· 5.9Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.
CVE-2026-69921High· 7.8Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
CVE-2026-69911High· 7.0Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
CVE-2026-69910Critical· 9.8Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code over a network.
Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code over a network.
CVE-2026-69907High· 7.8Improper handling of insufficient permissions or privileges in Windows Enterprise App Management allows an authorized attacker to elevate privileges locally.
Improper handling of insufficient permissions or privileges in Windows Enterprise App Management allows an authorized attacker to elevate privileges locally.
CVE-2026-69906High· 8.2Heap-based buffer overflow in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
CVE-2026-69904Low· 3.5Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
CVE-2026-69900High· 7.8Untrusted pointer dereference in Kernel Streaming WOW Thunk Service Driver allows an authorized attacker to elevate privileges locally.
Untrusted pointer dereference in Kernel Streaming WOW Thunk Service Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-69896High· 7.0Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
CVE-2026-69895Medium· 4.7Out-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-2026-69891High· 7.0Use after free in Windows Media allows an authorized attacker to elevate privileges locally.
Use after free in Windows Media allows an authorized attacker to elevate privileges locally.
CVE-2026-69890High· 7.5Use after free in Windows Virtual Trusted Platform Module allows an authorized attacker to elevate privileges locally.
Use after free in Windows Virtual Trusted Platform Module allows an authorized attacker to elevate privileges locally.
CVE-2026-69889High· 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-2026-69881High· 7.5Null pointer dereference in Windows IKE Extension allows an unauthorized attacker to deny service over a network.
Null pointer dereference in Windows IKE Extension allows an unauthorized attacker to deny service over a network.
CVE-2026-69878Medium· 6.4Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code locally.
Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code locally.
CVE-2026-69876High· 8.0Use after free in Windows DHCP Server allows an authorized attacker to execute code over an adjacent network.
Use after free in Windows DHCP Server allows an authorized attacker to execute code over an adjacent network.
CVE-2026-69875High· 8.0Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.
CVE-2026-69874High· 8.2Untrusted pointer dereference in Windows ALPC allows an authorized attacker to elevate privileges locally.
Untrusted pointer dereference in Windows ALPC allows an authorized attacker to elevate privileges locally.