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-2026-85337Medium· 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-2026-85336Medium· 5.5Out-of-bounds read in Windows Device Association Service allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows Device Association Service allows an authorized attacker to disclose information locally.
CVE-2026-85334High· 7.5Out-of-bounds read in Windows Message Queuing Queue Manager allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Windows Message Queuing Queue Manager allows an unauthorized attacker to disclose information over a network.
CVE-2026-85333Medium· 6.7Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Performance Monitor allows an authorized attacker to elevate privileges locally.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Performance Monitor allows an authorized attacker to elevate privileges locally.
CVE-2026-85332High· 7.8Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
CVE-2026-85331Medium· 6.5Out-of-bounds read in Windows Device Association Service allows an authorized attacker to disclose information over a network.
Out-of-bounds read in Windows Device Association Service allows an authorized attacker to disclose information over a network.
CVE-2026-85329High· 7.0Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Account allows an authorized attacker to elevate privileges locally.
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Account allows an authorized attacker to elevate privileges locally.
CVE-2026-85328High· 7.0Weak authentication in Windows Projected File System allows an authorized attacker to elevate privileges locally.
Weak authentication in Windows Projected File System allows an authorized attacker to elevate privileges locally.
CVE-2026-85327High· 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-2026-85324High· 7.5Memory allocation with excessive size value in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
Memory allocation with excessive size value in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
CVE-2026-85323Medium· 6.8Weak authentication in Network Device Enrollment Service (NDES) allows an authorized attacker to perform spoofing over a network.
Weak authentication in Network Device Enrollment Service (NDES) allows an authorized attacker to perform spoofing over a network.
CVE-2026-85322High· 7.5Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
CVE-2026-85321High· 7.5Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
CVE-2026-85320Medium· 5.5Use of uninitialized resource in Windows Print Spooler Components allows an authorized attacker to disclose information locally.
Use of uninitialized resource in Windows Print Spooler Components allows an authorized attacker to disclose information locally.
CVE-2026-85319High· 7.5Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
CVE-2026-85318High· 7.8Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
CVE-2026-84020High· 7.0Use after free in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
Use after free in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges locally.
CVE-2026-84019High· 7.0Use after free in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
Use after free in Windows Advanced Rasterization Platform allows an authorized attacker to elevate privileges locally.
CVE-2026-84018High· 7.0Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
CVE-2026-84017High· 7.5Null pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to deny service over a network.
Null pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to deny service over a network.
CVE-2026-84016High· 7.8Out-of-bounds write in Windows EAPHost Service allows an authorized attacker to elevate privileges locally.
Out-of-bounds write in Windows EAPHost Service allows an authorized attacker to elevate privileges locally.
CVE-2026-84015Critical· 9.8Heap-based buffer overflow in Remote Access Point-to-Point Protocol (PPP) EAP-TLS allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Remote Access Point-to-Point Protocol (PPP) EAP-TLS allows an unauthorized attacker to execute code over a network.
CVE-2026-84014High· 7.0Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
CVE-2026-84013High· 7.8Use after free in Windows Telephony Server allows an authorized attacker to elevate privileges locally.
Use after free in Windows Telephony Server allows an authorized attacker to elevate privileges locally.
CVE-2026-84012High· 8.1Double free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.
Double free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.
CVE-2026-84011Medium· 5.5Incorrect authorization in Windows SMB Client allows an authorized attacker to bypass a security feature locally.
Incorrect authorization in Windows SMB Client allows an authorized attacker to bypass a security feature locally.
CVE-2026-84009Medium· 4.7Time-of-check time-of-use (toctou) race condition in Windows Projected File System allows an authorized attacker to perform tampering locally.
Time-of-check time-of-use (toctou) race condition in Windows Projected File System allows an authorized attacker to perform tampering locally.
CVE-2026-84007Medium· 6.5Out-of-bounds read in Remote Desktop Gateway Service allows an authorized attacker to disclose information over a network.
Out-of-bounds read in Remote Desktop Gateway Service allows an authorized attacker to disclose information over a network.
CVE-2026-83935Critical· 9.8Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a network.
CVE-2026-83934High· 8.8Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.
Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.