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-2026-65780High· 7.0Windows Autopilot Elevation of Privilege Vulnerability
Double free in Windows Autopilot allows an authorized attacker to elevate privileges locally.
CVE-2026-65779High· 7.0Windows Autopilot Elevation of Privilege Vulnerability
Use after free in Windows Autopilot allows an authorized attacker to elevate privileges locally.
CVE-2026-65778High· 7.0Windows Autopilot Elevation of Privilege Vulnerability
Use after free in Windows Autopilot allows an authorized attacker to elevate privileges locally.
CVE-2026-65777Medium· 5.3Active Directory Security Feature Bypass Vulnerability
Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature over a network.
CVE-2026-65775High· 7.8Windows Win32k Elevation of Privilege Vulnerability
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-68817High· 7.8Microsoft Excel Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68814High· 7.8Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-68804High· 7.8Microsoft Excel Remote Code Execution Vulnerability
Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-63522High· 7.8Azure SQL Database Elevation of Privilege Vulnerability
Incorrect permission assignment for critical resource in Azure SQL Database allows an authorized attacker to elevate privileges locally.
CVE-2026-56179High· 8.3Windows Network Address Translation (NAT) Spoofing Vulnerability
Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.
CVE-2026-62917Medium· 4.6Microsoft SharePoint Server Spoofing Vulnerability
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-62869High· 8.8Azure Entra ID Spoofing Vulnerability
Insufficient verification of data authenticity in Azure Entra ID allows an authorized attacker to perform spoofing over a network.
CVE-2026-62839Medium· 6.5Microsoft SharePoint Server Spoofing Vulnerability
Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-62738Medium· 5.5Windows Management Instrumentation Information Disclosure Vulnerability
Out-of-bounds read in Windows Management Instrumentation allows an authorized attacker to disclose information locally.
CVE-2026-58639Medium· 6.5Microsoft SharePoint Server Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-50516Critical· 9.4Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability
Incorrect authorization in Microsoft Azure Kubernetes Service allows an authorized attacker to elevate privileges over a network.
CVE-2026-70336High· 8.8Improper control of generation of code ('code injection') in Visual Studio Code allows an unauthorized attacker to execute code over a network.
Improper control of generation of code ('code injection') in Visual Studio Code allows an unauthorized attacker to execute code over a network.
CVE-2026-70335High· 7.8Improper neutralization of special elements used in an os command ('os command injection') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to elevate privileges locally.
Improper neutralization of special elements used in an os command ('os command injection') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to elevate privileges locally.
CVE-2026-69320High· 8.8Improper neutralization of special elements used in an os command ('os command injection') in Visual Studio Code allows an unauthorized attacker to execute code over a network.
Improper neutralization of special elements used in an os command ('os command injection') in Visual Studio Code allows an unauthorized attacker to execute code over a network.
CVE-2026-69306High· 8.2Not failing securely ('failing open') in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.
Not failing securely ('failing open') in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-69278High· 7.8Incorrect authorization in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
Incorrect authorization in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-65675High· 7.1No cwe for this issue in Visual Studio Code CoPilot Chat Extension allows an unauthorized attacker to bypass a security feature over a network.
No cwe for this issue in Visual Studio Code CoPilot Chat Extension allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-59133High· 8.8Execution with unnecessary privileges in Microsoft High Performance Computing (HPC) Pack allows an authorized attacker to elevate privileges over a network.
Execution with unnecessary privileges in Microsoft High Performance Computing (HPC) Pack allows an authorized attacker to elevate privileges over a network.
CVE-2026-59113High· 8.8Missing authorization in Visual Studio Code allows an unauthorized attacker to execute code over a network.
Missing authorization in Visual Studio Code allows an unauthorized attacker to execute code over a network.
CVE-2026-58650High· 7.8Authorization bypass through user-controlled key in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
Authorization bypass through user-controlled key in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-47285Medium· 6.5Improper neutralization of special elements used in a command ('command injection') in Visual Studio Code allows an unauthorized attacker to disclose information over a network.
Improper neutralization of special elements used in a command ('command injection') in Visual Studio Code allows an unauthorized attacker to disclose information over a network.
CVE-2026-68821High· 7.3Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.
Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-65795Medium· 6.7Relative path traversal in Windows DNS allows an authorized attacker to elevate privileges locally.
Relative path traversal in Windows DNS allows an authorized attacker to elevate privileges locally.
CVE-2026-54981High· 7.8Inclusion of functionality from untrusted control sphere in Visual Studio Code - Python extension allows an unauthorized attacker to bypass a security feature locally.
Inclusion of functionality from untrusted control sphere in Visual Studio Code - Python extension allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-62719High· 7.8Heap-based buffer overflow in Windows Message Queuing allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Message Queuing allows an authorized attacker to elevate privileges locally.