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-2026-61920Medium· 6.6Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an authorized attacker to execute code over a network.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an authorized attacker to execute code over a network.
CVE-2026-61918Medium· 6.5Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.
CVE-2026-61368Medium· 5.0Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.
CVE-2026-61367High· 7.8Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
CVE-2026-61366High· 7.0Double free in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.
Double free in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.
CVE-2026-61365High· 7.8Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
CVE-2026-61364High· 7.8Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
CVE-2026-61363High· 7.5Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-61360Medium· 5.5Untrusted pointer dereference in Windows GDI allows an authorized attacker to disclose information locally.
Untrusted pointer dereference in Windows GDI allows an authorized attacker to disclose information locally.
CVE-2026-61358High· 7.8Improper link resolution before file access ('link following') in Windows Accessibility Infrastructure (ATBroker.exe) allows an authorized attacker to elevate privileges locally.
Improper link resolution before file access ('link following') in Windows Accessibility Infrastructure (ATBroker.exe) allows an authorized attacker to elevate privileges locally.
CVE-2026-61356High· 7.8Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
CVE-2026-61353High· 7.8Heap-based buffer overflow in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
CVE-2026-61352High· 7.5Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-61350Medium· 4.6Buffer over-read in Windows NTFS allows an unauthorized attacker to disclose information with a physical attack.
Buffer over-read in Windows NTFS allows an unauthorized attacker to disclose information with a physical attack.
CVE-2026-61349High· 7.8Use after free in Windows Work Folder Service allows an authorized attacker to elevate privileges locally.
Use after free in Windows Work Folder Service allows an authorized attacker to elevate privileges locally.
CVE-2026-61348High· 7.0Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2026-61347Medium· 5.5Buffer over-read in Windows Event Logging Service allows an authorized attacker to disclose information locally.
Buffer over-read in Windows Event Logging Service allows an authorized attacker to disclose information locally.
CVE-2026-61346High· 7.0Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-61345Medium· 6.5Null pointer dereference in Microsoft Remote Registry Service allows an authorized attacker to deny service over a network.
Null pointer dereference in Microsoft Remote Registry Service allows an authorized attacker to deny service over a network.
CVE-2026-59138Medium· 6.5Null pointer dereference in Microsoft Remote Registry Service allows an authorized attacker to deny service over a network.
Null pointer dereference in Microsoft Remote Registry Service allows an authorized attacker to deny service over a network.
CVE-2026-59137Medium· 5.5Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.
Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.
CVE-2026-59136Medium· 5.5Use of uninitialized resource in Microsoft COM for Windows allows an authorized attacker to disclose information locally.
Use of uninitialized resource in Microsoft COM for Windows allows an authorized attacker to disclose information locally.
CVE-2026-59135Medium· 5.5Weak authentication in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.
Weak authentication in Microsoft Windows Search Component allows an authorized attacker to disclose information locally.
CVE-2026-59134High· 7.5Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-59132High· 7.5Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network.
Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network.
CVE-2026-59131Medium· 5.6No cwe for this issue in AMD Zen allows an authorized attacker to disclose information locally.
No cwe for this issue in AMD Zen allows an authorized attacker to disclose information locally.
CVE-2026-59130Medium· 5.6No cwe for this issue in AMD Zen allows an authorized attacker to disclose information locally.
No cwe for this issue in AMD Zen allows an authorized attacker to disclose information locally.
CVE-2026-59128Medium· 5.5Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information locally.
CVE-2026-59127High· 7.8Integer overflow or wraparound in Windows Installer allows an authorized attacker to elevate privileges locally.
Integer overflow or wraparound in Windows Installer allows an authorized attacker to elevate privileges locally.
CVE-2026-59125High· 7.0Use after free in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.
Use after free in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.