microsoft has 2,953 CVEs on record between 2013 and 2026. Disclosure cadence is accelerating: 2136 in the last 90 days against 414 in the 90 before. The busiest recent month was September 2026 with 1005. The median CVSS is 7.8 (high), with 178 rated critical. 3% have been exploited in the wild, in line with the corpus average. The median gap from publication to a KEV listing is 113 days (91 cases). The dominant weakness classes are CWE-122 (585) and CWE-416 (512). Most affected products: windows_10_1607 (644), Windows 10 Version 1607 (481), Microsoft 365 Apps for Enterprise (209).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 3% vs 1% corpus
- Median CVSS
- 7.8
- Publish → KEV
- 113 d median(91)
- Last 90 days
- 2136 prev 414
Weakness classes
Products
- windows_10_1607 644
- Windows 10 Version 1607 481
- Microsoft 365 Apps for Enterprise 209
- windows_10 122
- 365_apps 115
- windows_10_1809 106
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.
2953 CVEsRSS
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.
CVE-2026-40376High· 7.5Visual Studio Code Elevation of Privilege Vulnerability
Improper input validation in Visual Studio Code allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-45459Low· 3.3Microsoft Excel Security Feature Bypass Vulnerability
Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-45457High· 7.8Microsoft Word Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-45455Low· 3.3Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-45462Medium· 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-2026-45476High· 8.2Microsoft Azure Network Adapter Elevation of Privilege Vulnerability
Use after free in Linux MANA Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-45465Medium· 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-2026-45464Medium· 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-2026-45463High· 8.4Microsoft Office Remote Code Execution Vulnerability
Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-45482High· 8.4Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability
Improper limitation of a pathname to a restricted directory ('path traversal') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-45598High· 7.0Windows 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-2026-45592High· 7.8Windows Internet (wininet.dll) Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows Internet (wininet.dll) allows an authorized attacker to elevate privileges locally.
CVE-2026-45586High· 7.8Windows Collaborative Translation Framework (CTFMON) Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally.
CVE-2026-45594Medium· 5.5Windows Application Identity (AppID) Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.
CVE-2026-45593High· 7.8Windows SDK Elevation of Privilege Vulnerability
Use after free in Windows SDK allows an authorized attacker to elevate privileges locally.
CVE-2026-45604Medium· 5.5Windows Managed Installer Information Disclosure Vulnerability
Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.