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-2026-48560Medium· 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.
CVE-2026-42907Medium· 6.5Windows Shell Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information over a network.
CVE-2026-42911High· 7.0Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2026-42909High· 7.5Remote Desktop Client Remote Code Execution Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-42916High· 7.8NT OS Kernel Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-42913High· 7.5Remote Desktop Client Remote Code Execution Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-42912High· 7.0Windows Telephony Service Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
CVE-2026-42968Medium· 5.5Windows Telephony Server Information Disclosure Vulnerability
Out-of-bounds read in Windows Telephony Service allows an authorized attacker to disclose information locally.
CVE-2026-42915Medium· 5.5Microsoft Windows VMSwitch Denial of Service Vulnerability
Incorrect calculation of buffer size in Windows VMSwitch allows an authorized attacker to deny service locally.
CVE-2026-42972Medium· 5.5Windows Hyper-V Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Hyper-V allows an authorized attacker to disclose information locally.
CVE-2026-42971Medium· 5.5Windows Push Notification Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.
CVE-2026-42969Medium· 5.5Windows Push Notification Information Disclosure Vulnerability
Use of uninitialized resource in Windows Push Notifications allows an authorized attacker to disclose information locally.
CVE-2026-42973Medium· 5.5Windows Push Notification Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.
CVE-2026-42970Medium· 5.5Windows Push Notification Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker to disclose information locally.
CVE-2026-42984High· 7.0Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-42981High· 8.1Windows Performance Monitor Remote Code Execution Vulnerability
Integer underflow (wrap or wraparound) in Windows Performance Monitor allows an unauthorized attacker to execute code over a network.
CVE-2026-42986High· 7.8Microsoft Graphics Component Elevation of Privilege Vulnerability
Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.