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-2026-32214Medium· 5.5Improper access control in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
Improper access control in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.
CVE-2026-32078High· 7.8Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
CVE-2026-32183High· 7.8Improper neutralization of special elements used in a command ('command injection') in Windows Snipping Tool allows an unauthorized attacker to execute code locally.
Improper neutralization of special elements used in a command ('command injection') in Windows Snipping Tool allows an unauthorized attacker to execute code locally.
CVE-2026-26168High· 7.8Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2026-32157High· 8.8Use 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-2026-26174High· 7.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
CVE-2026-33824Critical· 9.8CISA KEVPoCDouble free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
CVE-2026-32202Medium· 4.3CISA KEVPoCProtection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-32153High· 7.8Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.
Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.
CVE-2026-32203High· 7.5.NET and Visual Studio Denial of Service Vulnerability
Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.
CVE-2026-33116High· 7.5Loop with unreachable exit condition ('infinite loop') in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network.
Loop with unreachable exit condition ('infinite loop') in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network.
CVE-2026-32226Medium· 5.9Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
CVE-2026-32225High· 8.8Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.
Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-32224High· 7.0Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
CVE-2026-32223Medium· 6.8PoCHeap-based buffer overflow in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.
Heap-based buffer overflow in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-32222High· 7.8Untrusted pointer dereference in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
Untrusted pointer dereference in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
CVE-2026-32221High· 8.4Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.
Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.
CVE-2026-32220Medium· 4.4Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
CVE-2026-33119Medium· 5.4User interface (ui) misrepresentation of critical information in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
User interface (ui) misrepresentation of critical information in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-33118Medium· 4.3Microsoft Edge (Chromium-based) Spoofing Vulnerability
User interface (ui) misrepresentation of critical information in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-32186Critical· 10.0Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to elevate privileges over a network.
Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-33107Critical· 10.0Azure Databricks Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Azure Databricks allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-32173High· 8.6Azure SRE Agent Information Disclosure Vulnerability
Improper authentication in Azure SRE Agent allows an unauthorized attacker to disclose information over a network.
CVE-2026-33105Critical· 10.0Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability
Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-26135Critical· 9.6Azure Custom Locations Resource Provider (RP) Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Azure Custom Locations Resource Provider (RP) allows an authorized attacker to elevate privileges over a network.
CVE-2026-32213Critical· 10.0Azure AI Foundry Elevation of Privilege Vulnerability
Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-32211Critical· 9.1Azure MCP Server Information Disclosure Vulnerability
Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
CVE-2026-34401Medium· 6.5XML Notepad is a Windows program that provides a simple intuitive User Interface for browsing and editing XML documents
XML Notepad is a Windows program that provides a simple intuitive User Interface for browsing and editing XML documents. Prior to version 2.9.0.21, XML Notepad does not disable DTD processing by default which means external entities are …
CVE-2026-26141High· 7.8Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability
Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.
CVE-2026-21262High· 8.8Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.
Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.