microsoft has 2,953 CVEs on record between 2013 and 2026. Disclosure cadence is accelerating: 2137 in the last 90 days against 419 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
- 2137 prev 419
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-2026-50459High· 7.0Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.
CVE-2026-50649High· 7.8.NET Remote Code Execution Vulnerability
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.
CVE-2026-50646High· 7.8.NET Framework Remote Code Execution Vulnerability
Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally.
CVE-2026-50518Critical· 9.8Windows DHCP Server Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
CVE-2026-50510High· 7.8GitHub Copilot Remote Code Execution Vulnerability
Improper restriction of names for files and other resources in Github Copilot allows an unauthorized attacker to execute code locally.
CVE-2026-50509High· 7.8Wireless Wide Area Network Service (WwanSvc) Elevation of Privilege Vulnerability
Deserialization of untrusted data in Windows Wireless Wide Area Network Service allows an authorized attacker to elevate privileges locally.
CVE-2026-50504Medium· 6.5Windows Remote Desktop Client Information Disclosure Vulnerability
Buffer over-read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.
CVE-2026-50497Medium· 6.5Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
Off-by-one error in Windows Remote Desktop Protocol allows an unauthorized attacker to disclose information over a network.
CVE-2026-50496High· 7.5Windows Network Policy Server SNMP Information Disclosure Vulnerability
Out-of-bounds read in Windows Network Policy Server SNMP allows an unauthorized attacker to disclose information over a network.
CVE-2026-47295High· 8.8Microsoft SQL Server Elevation of Privilege Vulnerability
Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-50661Medium· 6.1Windows BitLocker Security Feature Bypass Vulnerability
Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
CVE-2026-50658High· 7.0Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Defender allows an authorized attacker to elevate privileges locally.
CVE-2026-50657Medium· 4.7PoCMicrosoft Defender for Endpoint for Mac Information Disclosure Vulnerability
Exposure of private personal information to an unauthorized actor in Microsoft Defender allows an authorized attacker to disclose information locally.
CVE-2026-50647High· 7.5Active Directory Federation Server Denial of Service Vulnerability
Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
CVE-2026-54121High· 8.8PoCActive Directory Certificate Services Elevation of Privilege Vulnerability
Improper authorization in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges over a network.
CVE-2026-54115High· 7.8Windows Message Queuing (MSMQ) Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows Active Directory allows an authorized attacker to elevate privileges locally.
CVE-2026-50690Medium· 5.5Windows SMB Information Disclosure Vulnerability
Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally.
CVE-2026-50688High· 7.8Windows Win32k Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-50685High· 7.5Windows DHCP Server Remote Code Execution Vulnerability
Double free in Windows DHCP Server allows an authorized attacker to execute code over a network.
CVE-2026-50684Medium· 4.8Active Directory Federation Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.
CVE-2026-50681Medium· 5.5Windows Secure Channel Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Windows Cryptographic Services allows an authorized attacker to disclose information locally.
CVE-2026-50680High· 8.2Windows Hyper-V Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
CVE-2026-50679High· 7.8Windows Search Service Elevation of Privilege Vulnerability
Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
CVE-2026-50677High· 7.8Windows Media Elevation of Privilege Vulnerability
Use after free in Windows Media allows an authorized attacker to elevate privileges locally.
CVE-2026-50676High· 7.8Windows Media Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges locally.
CVE-2026-50674High· 7.0Windows USB Print Driver Elevation of Privilege Vulnerability
Use after free in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-50673High· 7.8Windows Kernel Elevation of Privilege Vulnerability
Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-50672High· 7.0Windows NTFS Elevation of Privilege Vulnerability
Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-50670High· 8.8Windows Win32k Elevation of Privilege Vulnerability
Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-50669High· 7.0Windows Telephony Server 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.