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-2026-62909High· 7.8.NET Elevation of Privilege Vulnerability
Uncaught exception in .NET allows an authorized attacker to elevate privileges locally.
CVE-2026-70354High· 7.8.NET Core Remote Code Execution Vulnerability
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
CVE-2026-62897High· 7.0.NET Framework Remote Code Execution Vulnerability
Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.
CVE-2026-62871High· 7.8.NET Elevation of Privilege Vulnerability
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
CVE-2026-62898High· 7.5Microsoft QUIC Information Disclosure Vulnerability
Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.
CVE-2026-62899Medium· 5.9.NET Security Feature Bypass Vulnerability
Inconsistent interpretation of http requests ('http request/response smuggling') in .NET allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-62836High· 8.7Improper restriction of communication channel to intended endpoints in Azure SQL Managed Instance allows an unauthorized attacker to elevate privileges over a network.
Improper restriction of communication channel to intended endpoints in Azure SQL Managed Instance allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-56162Critical· 10.0Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-70332Critical· 9.6Microsoft Office SharePoint Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-65668High· 8.8Microsoft Purview eDiscovery Elevation of Privilege Vulnerability
Improper access control in Microsoft Purview eDiscovery allows an authorized attacker to elevate privileges over a network.
CVE-2026-63508Critical· 10.0Microsoft Planetary Computer Pro Elevation of Privilege Vulnerability
Missing authentication for critical function in Microsoft Planetary Computer Pro allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-62918High· 7.5Microsoft Teams Spoofing Vulnerability
Improper verification of cryptographic signature in Microsoft Teams allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-62896Critical· 9.6Microsoft Teams Elevation of Privilege Vulnerability
Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.
CVE-2026-59115Critical· 9.9Microsoft Entra Provisioning Service Elevation of Privilege Vulnerability
'.../...//' in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.
CVE-2026-50515Critical· 9.9Azure Service Bus Remote Code Execution Vulnerability
Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.
CVE-2026-50481Critical· 9.9Azure Active Directory Elevation of Privilege Vulnerability
Modification of assumed-immutable data (maid) in Azure Active Directory allows an authorized attacker to elevate privileges over a network.
CVE-2026-62873Critical· 9.8Microsoft 365 Admin Center Elevation of Privilege Vulnerability
Improper verification of cryptographic signature in Microsoft 365 Admin Center allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-68823Critical· 9.1Azure Confidential Ledger Remote Code Execution Vulnerability
Exposed dangerous method or function in Azure Confidential Ledger allows an authorized attacker to execute code over a network.
CVE-2026-65667Critical· 10.0Microsoft Teams Elevation of Privilege Vulnerability
Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-62830Critical· 9.9Azure SRE Agent Elevation of Privilege Vulnerability
Missing authorization in Azure SRE Agent allows an authorized attacker to elevate privileges over a network.
CVE-2026-59118Critical· 9.3Copilot Cowork Elevation of Privilege Vulnerability
Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-56161Critical· 9.6Azure Logic Apps Information Disclosure Vulnerability
Improper access control in Azure Logic Apps allows an authorized attacker to disclose information over a network.
CVE-2026-49163High· 8.8Application Insights Profiler Elevation of Privilege Vulnerability
Improper limitation of a pathname to a restricted directory ('path traversal') in Application Insights Profiler allows an authorized attacker to elevate privileges over a network.
CVE-2026-66310High· 7.7External control of file name or path in Microsoft Edge for Android allows an unauthorized attacker to disclose information locally.
External control of file name or path in Microsoft Edge for Android allows an unauthorized attacker to disclose information locally.
CVE-2026-62870High· 8.8Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-66321High· 7.4Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-66318High· 8.1Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
CVE-2026-66316Medium· 5.4Microsoft Edge (Chromium-based) Spoofing Vulnerability
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-66315High· 7.5Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-66314Medium· 6.5Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.