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 (639), Windows 10 Version 1607 (486), 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 639
- Windows 10 Version 1607 486
- 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-2026-62797High· 7.8Windows NTFS Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-62796Medium· 5.5Windows NTFS Information Disclosure Vulnerability
Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.
CVE-2026-62795High· 8.8Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution Vulnerability
Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code over a network.
CVE-2026-62792High· 8.1Windows TCP/IP Remote Code Execution Vulnerability
Stack-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
CVE-2026-62787High· 7.5Windows DNS Server Remote Code Execution Vulnerability
Use after free in Windows DNS allows an authorized attacker to execute code over a network.
CVE-2026-62784High· 8.8Microsoft Local Security Authority Server (lsasrv) Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to execute code over a network.
CVE-2026-62777High· 7.8Windows License Manager Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows License Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-62774High· 7.0Windows Graphics Kernel Elevation of Privilege Vulnerability
Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-62773High· 7.0Windows Kerberos Elevation of Privilege Vulnerability
Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally.
CVE-2026-62772High· 7.8Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
CVE-2026-65660High· 8.8CISA KEVPoCImproper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-65658High· 8.8Microsoft SharePoint Server Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-65657High· 7.8Microsoft Office Remote Code Execution Vulnerability
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-65656High· 7.8Microsoft Office Remote Code Execution Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-64922Medium· 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-2026-63521Medium· 5.5Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-63519High· 7.8Microsoft Office Graphics Component Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-63518High· 7.8Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-63517Medium· 5.5Microsoft Office Graphics Component Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
CVE-2026-63515High· 7.8Microsoft Office Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-63513High· 7.8Microsoft Office Graphics Component Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-62915Medium· 6.5Microsoft Exchange Server Security Feature Bypass Vulnerability
Missing authorization in Microsoft Exchange Server allows an authorized attacker to bypass a security feature over a network.
CVE-2026-62914High· 7.3Microsoft Exchange Server Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.
CVE-2026-62913High· 8.8Microsoft Exchange Server Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
CVE-2026-62912Medium· 6.5Microsoft Exchange Server Denial of Service Vulnerability
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.
CVE-2026-62910High· 7.2Microsoft Exchange Server Elevation of Privilege Vulnerability
Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-62908High· 7.0Windows Backup Engine Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.
CVE-2026-62900Medium· 5.9.NET Information Disclosure Vulnerability
Improper removal of sensitive information before storage or transfer in .NET allows an unauthorized attacker to disclose information over a network.
CVE-2026-54123Medium· 5.5Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Microsoft Defender for Endpoint allows an authorized attacker to disclose information locally.
CVE-2026-68810High· 7.8Microsoft Excel Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.