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

1025/101125/111225/120126/010226/020326/030426/040526/050626/060726/070826/080926/09

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

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2953

Total CVEs

178

Critical

CISA KEV

Exploited

Worst active — by depth score

Microsoft vulnerabilities

CVEs affecting Microsoft, newest first. Open any entry for full detail, references, and exploit status.

2953 CVEsRSS

CVEs per month

Weakness classes

Products

Worst active — by depth score

Microsoft vulnerabilities

Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.

Improper link resolution before file access ('link following') in Window PC Manager allows an authorized attacker to elevate privileges locally.

Improper neutralization of special elements used in a command ('command injection') in Windows Narrator Braille allows an authorized attacker to elevate privileges locally.

Improper authorization in Windows Admin Center allows an authorized attacker to execute code locally.

Loop with unreachable exit condition ('infinite loop') in Azure Active Directory allows an unauthorized attacker to deny service over a network.

Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.

Improper access control in Windows Server allows an authorized attacker to elevate privileges locally.

Integer overflow or wraparound in Windows Web Proxy Auto-Discovery Protocol (WPAD) allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.

Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.

Insufficient granularity of access control in Windows StateRepository API allows an authorized attacker to elevate privileges locally.

Use after free in DNS Server allows an authorized attacker to execute code over a network.

Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to elevate privileges with a physical attack.

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

Use after free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.

Use of uninitialized resource in Microsoft Windows App Store allows an authorized attacker to disclose information locally.

Heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a network.

Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Installer allows an authorized attacker to elevate privileges locally.

Use after free in Windows App Installer allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over a network.

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to execute code over a network.

Improper certificate validation in Azure Monitor Agent allows an unauthorized attacker to elevate privileges over an adjacent network.

Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges locally.

Insufficiently protected credentials in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to disclose information over a network.

Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Improper limitation of a pathname to a restricted directory ('path traversal') in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.

Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to deny service over a network.