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-2026-45654High· 7.9Secure Boot Security Feature Bypass Vulnerability
Improper access control in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
CVE-2026-45653High· 7.0Windows Kernel Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-45647Medium· 5.5Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally.
CVE-2026-47284Medium· 6.5Visual Studio Code Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Visual Studio Code allows an unauthorized attacker to disclose information over a network.
CVE-2026-45658High· 7.8Windows BitLocker Security Feature Bypass Vulnerability
Improper access control in Windows BitLocker allows an authorized attacker to bypass a security feature locally.
CVE-2026-47293High· 7.0Microsoft Office Click-To-Run Elevation of Privilege Vulnerability
Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.
CVE-2026-47281Critical· 9.6Visual Studio Code Elevation of Privilege Vulnerability
Missing authorization in Visual Studio Code allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-47640Medium· 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-2026-42910High· 7.8Windows Hotpatch Monitoring Service Elevation of Privilege Vulnerability
Out-of-bounds write in Windows Hotpatch Monitoring Service allows an authorized attacker to elevate privileges locally.
CVE-2026-47643Critical· 9.8Azure Stack Edge Remote Code Execution Vulnerability
External control of file name or path in Azure Stack Edge allows an unauthorized attacker to execute code over a network.
CVE-2026-47634High· 7.3Microsoft SharePoint Server Spoofing Vulnerability
Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-45481High· 7.3Microsoft 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-2026-47656High· 7.9Windows Boot Manager Security Feature Bypass Vulnerability
Protection mechanism failure in Windows Boot Manager allows an authorized attacker to bypass a security feature locally.
CVE-2026-45484High· 8.8Microsoft SharePoint Elevation of Privilege Vulnerability
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
CVE-2026-48569High· 7.1Visual Studio Code Security Feature Bypass Vulnerability
Improper input validation in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-48565High· 7.8Windows Narrator Braille Elevation of Privilege Vulnerability
Untrusted search path in Windows Narrator Braille allows an authorized attacker to elevate privileges locally.
CVE-2026-48560Medium· 5.4Microsoft SharePoint Server Spoofing Vulnerability
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-48574High· 7.8Windows Media Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.
CVE-2026-48562Medium· 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-2026-50507Medium· 6.8PoCWindows BitLocker Security Feature Bypass Vulnerability
Missing authentication for critical function in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
CVE-2026-49160High· 7.5PoCHTTP.sys Denial of Service Vulnerability
Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network.
CVE-2026-50512High· 7.8Microsoft PC Manager Elevation of Privilege Vulnerability
Missing authentication for critical function in Microsoft PC Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-50511High· 7.8Microsoft PC Manager Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-42837High· 7.8Windows Projected File System Elevation of Privilege Vulnerability
Out-of-bounds read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-42836High· 7.0Windows Function Discovery Service (fdwsd.dll) Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
CVE-2026-42904Critical· 9.6Windows TCP/IP Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
CVE-2026-42903Medium· 6.5Windows Kerberos Denial of Service Vulnerability
Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a network.
CVE-2026-42906Medium· 5.5Windows Shell Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information locally.
CVE-2026-42905High· 7.8Windows DWM Core Library Elevation of Privilege Vulnerability
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
CVE-2026-42908High· 7.5Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.