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 (635), Windows 10 Version 1607 (490), 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: 2137 prev 419

Weakness classes

Products

windows_10_1607 635
Windows 10 Version 1607 490
Microsoft 365 Apps for Enterprise 209
windows_10 122
365_apps 115
windows_10_1809 103

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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

Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.

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

Out-of-bounds read in Windows Win32K allows an authorized attacker to disclose information locally.

Improper limitation of a pathname to a restricted directory ('path traversal') in Windows PowerShell allows an authorized attacker to elevate privileges over a network.

Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.

External control of file name or path in .NET allows an unauthorized attacker to elevate privileges over a network.

Time-of-check time-of-use (toctou) race condition in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to disclose information over a network.

Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.

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

Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

Buffer over-read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information locally.

Improper validation of consistency within input in Windows TCP/IP allows an unauthorized attacker to bypass a security feature over a network.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K allows an authorized attacker to bypass a security feature locally.

Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows Credential Providers allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.

Untrusted search path in Windows Smart Card allows an authorized attacker to elevate privileges locally.

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

Concurrent execution using shared resource with improper synchronization ('race condition') in DNS Server allows an unauthorized attacker to execute code over a network.

Missing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over an adjacent network.

Time-of-check time-of-use (toctou) race condition in Windows Win32K allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.

Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate privileges over an adjacent network.

Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges over a network.

Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges over a network.

Heap-based buffer overflow in Windows Network File System allows an unauthorized attacker to execute code over a network.

Improper link resolution before file access ('link following') in Windows Container Manager Service allows an authorized attacker to bypass a security feature locally.

Use of uninitialized resource in Windows Spaceport.sys allows an authorized attacker to disclose information locally.