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-2026-45498Medium· 4.0CISA KEV0dayPoCMicrosoft Defender Denial of Service Vulnerability
Microsoft Defender Denial of Service Vulnerability
CVE-2026-42834High· 7.8Improper access control in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
Improper access control in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
CVE-2026-41109High· 8.8GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
Improper neutralization of special elements in output used by a downstream component ('injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-44503HighKiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect
Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect
CVE-2026-21515Critical· 9.9Azure IoT Central Elevation of Privilege Vulnerability
Exposure of sensitive information to an unauthorized actor in Azure IOT Central allows an authorized attacker to elevate privileges over a network.
CVE-2026-33819Critical· 10.0Microsoft Bing Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Bing allows an unauthorized attacker to execute code over a network.
CVE-2026-32210Critical· 9.3Microsoft Dynamics 365 (online) Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Dynamics 365 (Online) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-33102Critical· 9.3Microsoft 365 Copilot Elevation of Privilege Vulnerability
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-26150High· 8.6Microsoft Purview eDiscovery Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Microsoft Purview allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-35431Critical· 10.0Microsoft Entra ID Entitlement Management Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Entra ID Entitlement Management allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-32172High· 8.0Microsoft Power Apps Remote Code Execution Vulnerability
Uncontrolled search path element in Microsoft Power Apps allows an unauthorized attacker to execute code over a network.
CVE-2026-24303Critical· 9.6Microsoft Partner Center Elevation of Privilege Vulnerability
Improper access control in Microsoft Partner Center allows an authorized attacker to elevate privileges over a network.
CVE-2026-41134High· 7.8Kiota is an OpenAPI based HTTP Client code generator
Kiota is an OpenAPI based HTTP Client code generator. Versions prior to 1.29.1 and 1.31.1 are affected by a code-generation literal injection vulnerability in multiple writer sinks (for example: serialization/deserialization keys, path/q…
CVE-2026-40372Critical· 9.1Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-20930High· 7.8Windows Management Services Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
CVE-2026-25184High· 7.0Applocker Filter Driver (applockerfltr.sys) Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Applocker Filter Driver (applockerfltr.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-23653Medium· 5.7GitHub Copilot and Visual Studio Code Information Disclosure Vulnerability
Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code allows an authorized attacker to disclose information over a network.
CVE-2026-26154High· 7.5Windows Server Update Service (WSUS) Tampering Vulnerability
Improper input validation in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network.
CVE-2026-26149Critical· 9.0Microsoft Power Apps Desktop Client Spoofing Vulnerability
Improper neutralization of escape, meta, or control sequences in Microsoft Power Apps allows an authorized attacker to perform spoofing over a network.
CVE-2026-23670Medium· 5.7Windows Virtualization-Based Security (VBS) Security Feature Bypass Vulnerability
Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.
CVE-2026-20945Medium· 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-2026-26161High· 7.8Windows Sensor Data Service Elevation of Privilege Vulnerability
Untrusted pointer dereference in Windows Sensor Data Service allows an authorized attacker to elevate privileges locally.
CVE-2026-26160High· 7.8Remote Desktop Licensing Service Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows Remote Desktop Licensing Service allows an authorized attacker to elevate privileges locally.
CVE-2026-26151High· 7.1Remote Desktop Spoofing Vulnerability
Insufficient ui warning of dangerous operations in Windows Remote Desktop allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-26165High· 7.0Windows Shell Elevation of Privilege Vulnerability
Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.
CVE-2026-26162High· 7.8Windows OLE Elevation of Privilege Vulnerability
Access of resource using incompatible type ('type confusion') in Windows OLE allows an authorized attacker to elevate privileges locally.
CVE-2026-26155Medium· 6.5Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability
Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability
CVE-2026-26180High· 7.8Windows Kernel Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-26175Medium· 4.6Windows Boot Manager Security Feature Bypass Vulnerability
Use of uninitialized resource in Windows Boot Manager allows an unauthorized attacker to bypass a security feature with a physical attack.
CVE-2026-26167High· 8.8Windows Push Notifications Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.