| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB. These original certificates are approaching expiration, and devices containing affected certificate versions must update them to maintain Secure Boot functionality and avoid compromising security by losing security fixes related to Windows boot manager or Secure Boot.
The operating system’s certificate update protection mechanism relies on firmware components that might contain defects, which can cause certificate trust updates to fail or behave unpredictably. This leads to potential disruption of the Secure Boot trust chain and requires careful validation and deployment to restore intended security guarantees.
Certificate Authority (CA)
Location
Purpose
Expiration Date
Microsoft Corporation KEK CA 2011
KEK
Signs updates to the DB and DBX
06/24/2026
Microsoft Corporation UEFI CA 2011
DB
Signs 3rd party boot loaders, Option ROMs, etc.
06/27/2026
Microsoft Windows Production PCA 2011
DB
Signs the Windows Boot Manager
10/19/2026
For more information see this CVE and Windows Secure Boot certificate expiration and CA updates. |
| Protection mechanism failure in Windows Remote Assistance allows an unauthorized attacker to bypass a security feature locally. |
| Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network. |
| Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally. |
| Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally. |
| Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. |
| Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network. |
| Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally. |
| Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. |
| Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. |
| Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network. |
| Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network. |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network. |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally. |
| Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to perform spoofing over a network. |
| Improper access control in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally. |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally. |
| Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information over a network. |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally. |
| Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally. |
