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-2026-32193High· 8.8Azure Kubernetes Service (AKS) Remote Code Execution Vulnerability
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Azure Kubernetes Service allows an authorized attacker to execute code locally.
CVE-2026-47637Medium· 4.6Microsoft SharePoint Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-41098High· 8.4Azure Stack Edge Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Azure Stack Edge allows an authorized attacker to perform spoofing over a network.
CVE-2026-47636Medium· 5.4Microsoft SharePoint Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-47635High· 8.4Microsoft Outlook and Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-47641Medium· 4.6Microsoft SharePoint Server Spoofing Vulnerability
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-47638Medium· 4.6Microsoft SharePoint Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-45588High· 7.9Secure Boot Security Feature Bypass Vulnerability
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
CVE-2026-47648High· 7.0Windows Storage Elevation of Privilege Vulnerability
Untrusted search path in Windows Storage allows an authorized attacker to elevate privileges locally.
CVE-2026-47639Medium· 5.4Microsoft SharePoint Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-47654High· 7.5Remote Desktop Client Remote Code Execution Vulnerability
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-47653High· 8.8Remote Desktop Client Remote Code Execution Vulnerability
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-47652High· 8.2Windows Hyper-V Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.
CVE-2026-48568High· 7.9Secure Boot Security Feature Bypass Vulnerability
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
CVE-2026-48563High· 7.5Remote Desktop Client Remote Code Execution Vulnerability
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-48573High· 7.9Secure Boot Security Feature Bypass Vulnerability
No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
CVE-2026-48570High· 7.9Secure Boot Security Feature Bypass Vulnerability
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
CVE-2026-48578High· 7.9Secure Boot Security Feature Bypass Vulnerability
Improper access control in Windows Secure Boot allows an authorized attacker to elevate privileges locally.
CVE-2026-48576High· 7.9Secure Boot Security Feature Bypass Vulnerability
No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
CVE-2026-48575High· 7.9Secure Boot Security Feature Bypass Vulnerability
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
CVE-2026-50508Medium· 6.5Windows NTLM Spoofing Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-48583High· 7.8Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-49161High· 7.8Microsoft PC Manager Security Feature Bypass Vulnerability
Improper access control in Microsoft PC Manager allows an authorized attacker to bypass a security feature locally.
CVE-2026-42828High· 7.8Windows Projected File System Elevation of Privilege Vulnerability
Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-40371High· 8.8Microsoft Dynamics 365 (on-premises) Elevation of Privilege Vulnerability
Improper handling of insufficient permissions or privileges in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to elevate privileges over a network.
CVE-2026-33113Medium· 5.4Microsoft SharePoint Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-42835High· 8.1Microsoft Teams for Android Information Disclosure Vulnerability
Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.
CVE-2026-42829High· 7.8Windows Administrator Protection Secure Feature Bypass Vulnerability
Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.
CVE-2026-45454Medium· 6.5Microsoft SharePoint Remote Code Execution Vulnerability
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-44822High· 8.2Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.