Microsoft has 4,598 CVEs on record between 2012 and 2026. Disclosure cadence is accelerating: 2929 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 272 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
- 2929 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.
4598 CVEsRSS
CVE-2026-96188High· 7.3External control of system or configuration setting in Microsoft PowerToys allows an authorized attacker to elevate privileges locally.
External control of system or configuration setting in Microsoft PowerToys allows an authorized attacker to elevate privileges locally.
CVE-2026-96186High· 7.8Deserialization of untrusted data in Microsoft Windows Media Foundation allows an authorized attacker to elevate privileges locally.
Deserialization of untrusted data in Microsoft Windows Media Foundation allows an authorized attacker to elevate privileges locally.
CVE-2026-96183Medium· 5.5Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to disclose information locally.
Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to disclose information locally.
CVE-2026-96118High· 7.8Out-of-bounds read in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
Out-of-bounds read in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-96113Critical· 9.8Heap-based buffer overflow in DNS Server allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in DNS Server allows an unauthorized attacker to execute code over a network.
CVE-2026-96108High· 7.8Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-96096Critical· 9.8Heap-based buffer overflow in Windows Media Player allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Media Player allows an unauthorized attacker to execute code over a network.
CVE-2026-96071High· 7.5Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.
CVE-2026-96044High· 8.8No cwe for this issue in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
No cwe for this issue in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
CVE-2026-95943High· 7.0Double free in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.
Double free in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.
CVE-2026-95904Medium· 5.5Buffer over-read in Windows Event Logging Service allows an authorized attacker to disclose information locally.
Buffer over-read in Windows Event Logging Service allows an authorized attacker to disclose information locally.
CVE-2026-94506Medium· 6.5Out-of-bounds read in Microsoft Office Access allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Microsoft Office Access allows an unauthorized attacker to disclose information over a network.
CVE-2026-88226Medium· 4.6Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose information with a physical attack.
Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose information with a physical attack.
CVE-2026-88219High· 8.8Untrusted pointer dereference in RPC Runtime allows an unauthorized attacker to execute code over a network.
Untrusted pointer dereference in RPC Runtime allows an unauthorized attacker to execute code over a network.
CVE-2026-88210High· 7.8Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.
Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-88209Medium· 4.6Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-88208Medium· 4.6Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-88207High· 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-2026-88206High· 7.5Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
CVE-2026-88204High· 7.3Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-88203Medium· 6.5Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
CVE-2026-88202High· 8.8Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
CVE-2026-88201Medium· 6.5Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-88200High· 8.8Privilege context switching error in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Privilege context switching error in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
CVE-2026-88198High· 8.8Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
CVE-2026-88197High· 8.8Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
CVE-2026-88196High· 8.8Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.
CVE-2026-88195Medium· 6.5Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-88194High· 7.8Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
CVE-2026-88193High· 7.8Heap-based buffer overflow in Microsoft Scripting Engine allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Microsoft Scripting Engine allows an authorized attacker to elevate privileges locally.