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-2026-69525Critical· 9.8Use after free in Windows Remote Desktop Services allows an unauthorized attacker to execute code over a network.
Use after free in Windows Remote Desktop Services allows an unauthorized attacker to execute code over a network.
CVE-2026-69524High· 8.1Use after free in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.
Use after free in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.
CVE-2026-69522High· 8.8Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
CVE-2026-69518High· 8.8Heap-based buffer overflow in Windows Remote Desktop allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Remote Desktop allows an unauthorized attacker to execute code over a network.
CVE-2026-69517High· 7.0Use after free in Windows Wireless Networking allows an authorized attacker to elevate privileges locally.
Use after free in Windows Wireless Networking allows an authorized attacker to elevate privileges locally.
CVE-2026-69516High· 7.0Use after free in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.
Use after free in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.
CVE-2026-69514High· 7.5Heap-based buffer overflow in Windows Remote Desktop Services allows an authorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Remote Desktop Services allows an authorized attacker to execute code over a network.
CVE-2026-69513High· 7.8Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
CVE-2026-69512High· 8.0Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privileges over a network.
Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privileges over a network.
CVE-2026-69511High· 8.8Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.
CVE-2026-69510High· 8.1Stack-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
Stack-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
CVE-2026-69509High· 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-2026-69508High· 7.8Stack-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
Stack-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
CVE-2026-69507Medium· 5.7Insertion of sensitive information into externally-accessible file or directory in Microsoft Windows Search Component allows an authorized attacker to disclose information over a network.
Insertion of sensitive information into externally-accessible file or directory in Microsoft Windows Search Component allows an authorized attacker to disclose information over a network.
CVE-2026-69505High· 8.0Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a network.
Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a network.
CVE-2026-69504Medium· 5.5Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
CVE-2026-69503High· 8.0Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.
Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.
CVE-2026-69501High· 7.0Untrusted pointer dereference in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
Untrusted pointer dereference in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
CVE-2026-69500High· 7.0Use after free in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.
Use after free in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.
CVE-2026-69499High· 8.8Integer overflow or wraparound in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
Integer overflow or wraparound in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
CVE-2026-69498High· 7.0Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-69497Medium· 6.5Missing release of memory after effective lifetime in Windows DHCP Server allows an authorized attacker to deny service over a network.
Missing release of memory after effective lifetime in Windows DHCP Server allows an authorized attacker to deny service over a network.
CVE-2026-69496Critical· 9.8Heap-based buffer overflow in Windows Compressed Folder allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Compressed Folder allows an unauthorized attacker to execute code over a network.
CVE-2026-69495High· 8.8Heap-based buffer overflow in Windows Event Logging Service allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Event Logging Service allows an unauthorized attacker to execute code over a network.
CVE-2026-69494High· 8.8Out-of-bounds read in Windows Event Logging Service allows an unauthorized attacker to execute code over a network.
Out-of-bounds read in Windows Event Logging Service allows an unauthorized attacker to execute code over a network.
CVE-2026-69493Critical· 9.8Out-of-bounds read in Windows Event Logging Service allows an unauthorized attacker to execute code over a network.
Out-of-bounds read in Windows Event Logging Service allows an unauthorized attacker to execute code over a network.
CVE-2026-69492High· 7.0Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-69491Critical· 9.8Heap-based buffer overflow in Windows Microsoft DirectMusic allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Microsoft DirectMusic allows an unauthorized attacker to execute code over a network.
CVE-2026-69490Medium· 6.8Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to elevate privileges with a physical attack.
Out-of-bounds read in Windows USB Mass Storage Class Driver allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-69489High· 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.