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 (643), Windows 10 Version 1607 (482), Microsoft 365 Apps for Enterprise (209).
CVEs per month
Last 12 months, by publish date
- 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 643
- Windows 10 Version 1607 482
- Microsoft 365 Apps for Enterprise 209
- windows_10 122
- 365_apps 115
- windows_10_1809 106
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.
2953 CVEsRSS
CVE-2026-64897Medium· 4.6Microsoft SharePoint Server Spoofing Vulnerability
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-2026-63533High· 7.8Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-63532High· 7.8Microsoft Office Remote Code Execution Vulnerability
Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-63531Medium· 5.5Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-63530Medium· 5.5Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-63529Medium· 5.5Microsoft Office Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-63528Medium· 5.5Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-63527High· 7.8Microsoft Office Word Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-63526High· 7.8Microsoft Office Graphics Component Remote Code Execution Vulnerability
Stack-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-63525High· 7.8Microsoft Office Word Remote Code Execution Vulnerability
Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-63524Medium· 5.5Microsoft Office Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-62911High· 8.0PoCMicrosoft Exchange Server Elevation of Privilege Vulnerability
Authentication bypass by capture-replay in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-62888High· 7.8Windows DWM Core Library Elevation of Privilege Vulnerability
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
CVE-2026-62887Medium· 5.5Windows NTFS Information Disclosure Vulnerability
Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
CVE-2026-62885High· 7.8Windows Win32k Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-62883Medium· 6.7Windows DNS Elevation of Privilege Vulnerability
Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
CVE-2026-62881Medium· 6.7Windows DNS Elevation of Privilege Vulnerability
Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
CVE-2026-62880High· 7.8Windows NTFS Elevation of Privilege Vulnerability
Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-62872High· 8.8.NET Framework Elevation of Privilege Vulnerability
Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.
CVE-2026-62842Medium· 5.5Microsoft Office Graphics Component Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-62832High· 7.8Windows User Profile Service Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in Windows User Profile Service allows an authorized attacker to elevate privileges locally.
CVE-2026-62822High· 8.8Windows GDI+ Remote Code Execution Vulnerability
Integer overflow or wraparound in Windows GDI+ allows an unauthorized attacker to execute code over a network.
CVE-2026-62811High· 7.8Windows HTTP.sys Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
CVE-2026-65776High· 7.0Windows Win32k Elevation of Privilege Vulnerability
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-65774High· 7.8Windows Installer Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
CVE-2026-65773High· 7.8Windows Kernel Elevation of Privilege Vulnerability
Improper access control in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-65681High· 7.5Windows iSCSI Target Service Denial of Service Vulnerability
Null pointer dereference in Windows iSCSI Target Service allows an unauthorized attacker to deny service over a network.
CVE-2026-65680Medium· 6.7Microsoft OneDrive for MacOS Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in Microsoft OneDrive allows an authorized attacker to elevate privileges locally.
CVE-2026-65679High· 8.1Windows iSCSI Target Service Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code over a network.
CVE-2026-65673High· 7.8Microsoft Entra Connect Elevation of Privilege Vulnerability
Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Entra Connect Sync allows an authorized attacker to elevate privileges locally.