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

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

Buffer over-read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.

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

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

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

Numeric truncation error in Windows Kernel allows an authorized attacker to elevate privileges locally.

Use after free in Graphic Fonts allows an authorized attacker to elevate privileges locally.

Use after free in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.

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

Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Windows SMB Client allows an authorized attacker to disclose information over a network.

Heap-based buffer overflow in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.

Untrusted pointer dereference in Windows Print Spooler Components allows an authorized attacker to deny service over a network.

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

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

Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a physical attack.

Heap-based buffer overflow in Windows Online Certificate Status Protocol (OCSP) allows an authorized attacker to elevate privileges locally.

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

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

Out-of-bounds read in Windows CD-ROM Driver allows an authorized attacker to elevate privileges locally.

Use after free in Windows Work Folder Service allows an authorized attacker to elevate privileges locally.

Origin validation error in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.

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

Missing authentication for critical function in Microsoft Windows Search Component allows an authorized attacker to perform tampering locally.

Missing authorization in Windows Hyper-V allows an authorized attacker to elevate privileges over a network.

Generation of error message containing sensitive information in Windows Print Spooler Components allows an authorized attacker to disclose information over a network.

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

Out-of-bounds read in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Windows RNDIS allows an unauthorized attacker to disclose information with a physical attack.

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