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-2021-26411High· 8.8CISA KEVPoCInternet Explorer Memory Corruption Vulnerability
Internet Explorer Memory Corruption Vulnerability
CVE-2021-27065High· 7.8CISA KEVPoCMicrosoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-26858High· 7.8CISA KEVPoCMicrosoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-26857High· 7.8CISA KEV0dayPoCMicrosoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-26855Critical· 9.1CISA KEV0dayPoCMicrosoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-24112High· 8.1.NET Core Remote Code Execution Vulnerability
.NET Core Remote Code Execution Vulnerability
CVE-2021-1732High· 7.8CISA KEV0dayPoCWindows Win32k Elevation of Privilege Vulnerability
Windows Win32k Elevation of Privilege Vulnerability
CVE-2021-1636High· 8.8PoCMicrosoft SQL Elevation of Privilege Vulnerability
Microsoft SQL Elevation of Privilege Vulnerability
CVE-2020-1171High· 8.8A remote code execution vulnerability exists in Visual Studio Code when the Python extension loads configuration files after opening a project
A remote code execution vulnerability exists in Visual Studio Code when the Python extension loads configuration files after opening a project. An attacker who successfully exploited the vulnerability could run arbitrary code in the cont…
CVE-2020-1166High· 7.8An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service
An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An…
CVE-2020-1165High· 7.8An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service
An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An…
CVE-2020-1164High· 7.0An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could ex…
CVE-2020-1161High· 7.5A denial of service vulnerability exists when ASP.NET Core improperly handles web requests
A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. The vulnerabil…
CVE-2020-1158High· 7.8An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could ex…
CVE-2020-1157High· 7.8An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could ex…
CVE-2020-1156High· 7.8An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could ex…
CVE-2020-1155High· 7.8An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could ex…
CVE-2020-1154High· 7.8An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated conte…
CVE-2020-1153High· 7.8A remote code execution vulnerability exists in the way that Microsoft Graphics Components handle objects in memory
A remote code execution vulnerability exists in the way that Microsoft Graphics Components handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code on a target system. To exploit the…
CVE-2020-1151High· 7.0An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could ex…
CVE-2020-1150High· 7.8A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory
A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory. An attacker who successfully exploited the vulnerability could install programs; view, change, or delete data; or create new acc…
CVE-2020-1149High· 7.0An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could ex…
CVE-2020-1145Medium· 5.5An information disclosure vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory, allowing an attacker to retrieve information from a targeted system
An information disclosure vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory, allowing an attacker to retrieve information from a targeted system. By itself, the information disclo…
CVE-2020-1144High· 7.8An elevation of privilege vulnerability exists when the Windows State Repository Service improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows State Repository Service improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An …
CVE-2020-1143High· 7.0An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory
An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. …
CVE-2020-1142High· 7.8An elevation of privilege vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory
An elevation of privilege vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An a…
CVE-2020-1141Medium· 5.5An information disclosure vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory, allowing an attacker to retrieve information from a targeted system
An information disclosure vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in memory, allowing an attacker to retrieve information from a targeted system. By itself, the information disclo…
CVE-2020-1140High· 7.8An elevation of privilege vulnerability exists when DirectX improperly handles objects in memory
An elevation of privilege vulnerability exists when DirectX improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs;…
CVE-2020-1139High· 7.8An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context. An attacker could ex…
CVE-2020-1138High· 7.0An elevation of privilege vulnerability exists when the Storage Service improperly handles file operations
An elevation of privilege vulnerability exists when the Storage Service improperly handles file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges on the victim system. To exploit the vul…