Microsoft has 4,599 CVEs on record between 2012 and 2026. Disclosure cadence is accelerating: 2930 in the last 90 days against 934 in the 90 before. The busiest recent month was October 2026 with 1482. The median CVSS is 7.8 (high), with 273 rated critical. 2% have been exploited in the wild, in line with the corpus average. The median gap from publication to a KEV listing is 112 days (95 cases). The dominant weakness classes are CWE-122 (931) and CWE-416 (851). Most affected products: windows_10_1607 (988), Windows 10 Version 1607 (877), 365_apps (267).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 2% vs 1% corpus
- Median CVSS
- 7.8
- Publish → KEV
- 112 d median(95)
- Last 90 days
- 2930 prev 934
Weakness classes
Products
- windows_10_1607 988
- Windows 10 Version 1607 877
- 365_apps 267
- Microsoft 365 Apps for Enterprise 232
- Windows 10 Version 1809 199
- windows_10_1809 174
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.
4599 CVEsRSS
CVE-2026-105722High· 7.0Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
CVE-2026-105720Medium· 4.3Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
CVE-2026-105719Medium· 6.5Improper input validation in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
CVE-2026-105718High· 8.8Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-105717High· 8.8Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105716High· 8.8Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105715High· 7.5Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-105714High· 7.5Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105713Medium· 5.7Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over an adjacent network.
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over an adjacent network.
CVE-2026-105599High· 7.5Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
CVE-2026-105598High· 8.8Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105597High· 8.8Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105596High· 8.8Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105595High· 8.8Out-of-bounds read in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Out-of-bounds read in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105593High· 8.8Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105592High· 7.5Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105591High· 8.8Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.
CVE-2026-105016Critical· 9.8Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
CVE-2026-105013High· 7.4Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-105010Critical· 9.8Use after free in Microsoft Windows Search Component allows an unauthorized attacker to elevate privileges over a network.
Use after free in Microsoft Windows Search Component allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-105009High· 7.5Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
CVE-2026-105008Critical· 9.0No cwe for this issue in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
No cwe for this issue in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-105007High· 8.8An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS) when ndis.sys fails to check the length of a buffer prior to copying memory to it. To exploit the vulnerability, in a local attack scenar…
An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS) when ndis.sys fails to check the length of a buffer prior to copying memory to it. To exploit the vulnerability, in a local attack scenar…
CVE-2026-105006Medium· 6.4Use after free in HID class driver allows an unauthorized attacker to elevate privileges with a physical attack.
Use after free in HID class driver allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-105005High· 8.1Out-of-bounds write in Windows Schannel allows an unauthorized attacker to execute code over a network.
Out-of-bounds write in Windows Schannel allows an unauthorized attacker to execute code over a network.
CVE-2026-105004High· 7.8Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.
CVE-2026-105003High· 7.8Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.
CVE-2026-103578Medium· 6.8Untrusted pointer dereference in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.
Untrusted pointer dereference in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-103577High· 7.5Insecure default variable initialization in Microsoft QUIC allows an unauthorized attacker to bypass a security feature over a network.
Insecure default variable initialization in Microsoft QUIC allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-103576Medium· 6.5Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.