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-2026-70004High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69999Medium· 5.5Out-of-bounds read in Windows Update allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows Update allows an authorized attacker to disclose information locally.
CVE-2026-69998High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69997High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69996High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69995High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69994High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69992High· 7.5Use 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-2026-69991High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69988High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69987High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69986High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69985High· 8.8Heap-based buffer overflow in Windows Libarchive allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Libarchive allows an unauthorized attacker to execute code over a network.
CVE-2026-69984High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69982Medium· 5.9Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to bypass a security feature over a network.
Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-69979Medium· 5.5Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.
Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally.
CVE-2026-69978Medium· 5.6Null pointer dereference in Windows VMSwitch allows an authorized attacker to deny service locally.
Null pointer dereference in Windows VMSwitch allows an authorized attacker to deny service locally.
CVE-2026-69977High· 7.0Use after free in Quality Windows Audio/Video Experience (QWAVE) service allows an authorized attacker to elevate privileges locally.
Use after free in Quality Windows Audio/Video Experience (QWAVE) service allows an authorized attacker to elevate privileges locally.
CVE-2026-69976High· 7.5Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-69974Medium· 4.7Out-of-bounds read in Desktop Window Manager allows an authorized attacker to disclose information locally.
Out-of-bounds read in Desktop Window Manager allows an authorized attacker to disclose information locally.
CVE-2026-69973Medium· 6.5Improper limitation of a pathname to a restricted directory ('path traversal') in Windows Libarchive allows an unauthorized attacker to perform tampering over a network.
Improper limitation of a pathname to a restricted directory ('path traversal') in Windows Libarchive allows an unauthorized attacker to perform tampering over a network.
CVE-2026-69971Medium· 5.5Incorrect authorization in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.
Incorrect authorization in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.
CVE-2026-69970High· 7.0Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69969Medium· 4.7Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to disclose information locally.
Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to disclose information locally.
CVE-2026-69968Medium· 6.5Relative path traversal in Windows Libarchive allows an unauthorized attacker to perform tampering over a network.
Relative path traversal in Windows Libarchive allows an unauthorized attacker to perform tampering over a network.
CVE-2026-69967Medium· 5.5Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to disclose information locally.
CVE-2026-69966High· 7.8Integer overflow or wraparound in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
Integer overflow or wraparound in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69964High· 7.0Use after free in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
Use after free in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69963High· 7.8Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69959High· 7.8Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to execute code locally.
Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to execute code locally.