CVE-2026-45656 UEFI Secure Boot Security Feature Bypass Vulnerability
Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.
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Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.
Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.
Relative path traversal in Visual Studio Code allows an unauthorized attacker to perform tampering over a network.
Integer overflow or wraparound in Windows Kerberos allows an authorized attacker to execute code over an adjacent network.
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.
Inclusion of functionality from untrusted control sphere in Visual Studio Code allows an unauthorized attacker to elevate privileges locally.
Improper access control in Microsoft Kinect allows an authorized attacker to elevate privileges locally.
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Azure Kubernetes Service allows an authorized attacker to execute code locally.
Improper authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
Improper neutralization of input during web page generation ('cross-site scripting') in Azure Stack Edge allows an authorized attacker to perform spoofing over a network.
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
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.
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.
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.
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.
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.
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Untrusted search path in Windows Storage allows an authorized attacker to elevate privileges locally.
Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Out-of-bounds read in Windows Hyper-V allows an unauthorized attacker to execute code locally.
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Information published. This CVE was addressed by updates that were released in May 2026, but the CVE was inadvertently omitted from the May 2026 Security Updates. This is an informational change only. Customers who have already installed the May 2026 updates do not need to tak...
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
Improper access control in Microsoft PC Manager allows an authorized attacker to bypass a security feature locally.
Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
Deserialization of untrusted data in Nuance PowerScribe allows an unauthorized attacker to execute code over a network.
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
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.
Improper handling of insufficient permissions or privileges in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to elevate privileges over a network.
Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.
Improper access control in Windows Administrator Protection allows an authorized attacker to bypass a security feature locally.
Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Teams for Android allows an authorized attacker to disclose information over a network.
Improper input validation in Visual Studio Code allows an unauthorized attacker to elevate privileges over a network.
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
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.
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
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.
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.
Use after free in Linux MANA Driver allows an authorized attacker to elevate privileges locally.
Improper limitation of a pathname to a restricted directory ('path traversal') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally.
Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Integer overflow or wraparound in Windows Internet (wininet.dll) allows an authorized attacker to elevate privileges locally.
Updated an acknowledgement. This is an informational change only.
Exposure of sensitive information to an unauthorized actor in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.
Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.