Microsoft has 4,599 CVEs on record between 2012 and 2026. Disclosure cadence is accelerating: 2930 in the last 90 days against 932 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 932
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-2026-62718Medium· 6.5Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
CVE-2026-62717High· 7.8Heap-based buffer overflow in Windows Message Queuing allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Message Queuing allows an authorized attacker to elevate privileges locally.
CVE-2026-62716Medium· 6.5Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
CVE-2026-62715Medium· 6.5Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
CVE-2026-62714Medium· 6.5Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
CVE-2026-62713High· 7.8Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-62712High· 7.8Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-62711High· 7.8Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
CVE-2026-62710High· 7.8Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
CVE-2026-62709Medium· 5.5Use of uninitialized resource in Windows GDI+ allows an authorized attacker to disclose information locally.
Use of uninitialized resource in Windows GDI+ allows an authorized attacker to disclose information locally.
CVE-2026-62707High· 7.8Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
CVE-2026-62703Medium· 5.5Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
CVE-2026-62701High· 7.8Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
CVE-2026-62700High· 7.8Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.
CVE-2026-62699Medium· 6.8Null pointer dereference in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to execute code locally.
Null pointer dereference in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to execute code locally.
CVE-2026-62698High· 7.8Numeric truncation error in Microsoft Digest Authentication allows an authorized attacker to elevate privileges locally.
Numeric truncation error in Microsoft Digest Authentication allows an authorized attacker to elevate privileges locally.
CVE-2026-62696High· 7.8Integer underflow (wrap or wraparound) in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.
Integer underflow (wrap or wraparound) in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.
CVE-2026-62692High· 7.8Heap-based buffer overflow in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
CVE-2026-62690High· 7.0Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
CVE-2026-61939High· 7.0Use after free in Winlogon allows an authorized attacker to elevate privileges locally.
Use after free in Winlogon allows an authorized attacker to elevate privileges locally.
CVE-2026-61937High· 7.8Integer overflow or wraparound in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
Integer overflow or wraparound in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
CVE-2026-61936Medium· 5.5Missing authorization in Windows Defender Firewall Service allows an authorized attacker to bypass a security feature locally.
Missing authorization in Windows Defender Firewall Service allows an authorized attacker to bypass a security feature locally.
CVE-2026-61932High· 7.8Access of resource using incompatible type ('type confusion') in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
Access of resource using incompatible type ('type confusion') in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
CVE-2026-61930High· 7.8Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-61928Medium· 5.5Cleartext storage of sensitive information in Windows Hello allows an authorized attacker to perform tampering locally.
Cleartext storage of sensitive information in Windows Hello allows an authorized attacker to perform tampering locally.
CVE-2026-61926High· 7.8Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.
CVE-2026-61925High· 7.8Incorrect authorization in Windows Installer allows an authorized attacker to elevate privileges locally.
Incorrect authorization in Windows Installer allows an authorized attacker to elevate privileges locally.
CVE-2026-61924Medium· 6.5Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.
CVE-2026-61923High· 7.8Heap-based buffer overflow in Windows Display Enhancement Service allows an authorized attacker to elevate privileges locally.
Heap-based buffer overflow in Windows Display Enhancement Service allows an authorized attacker to elevate privileges locally.
CVE-2026-61921Medium· 6.5Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.
Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.