ESET researchers discovered 11 vulnerable UEFI shim bootloaders signed by Microsoft that allow attackers to bypass UEFI ...
The images are known as shims, which were invented to extend Secure Boot to Linux devices and utility software. Using a ...
Gadget Review on MSN
Microsoft's Secure Boot has been broken for most of its existence
Secure Boot has been bypassed for years via unrevoked Microsoft-signed shims dating to 2013. Patch Tuesday June 2026 fixes it ...
Old UEFI shim bootloaders could be abused to bypass Secure Boot on any UEFI-based machine, regardless of the operating system ...
ESET found 11 Microsoft-signed UEFI shims, some over a decade old, that let attackers bypass Secure Boot without a single new ...
Some signed third-party bootloaders for the Unified Extensible Firmware Interface (UEFI) could allow attackers to execute unauthorized code in an early stage of the boot process, before the operating ...
ESET researchers discovered 11 old, Microsoft-signed, UEFI applications that allow bypassing UEFI Secure Boot on the majority of UEFI-based ...
Attackers could bypass UEFI Secure Boot on a wide range of systems thanks to 11 Microsoft-signed UEFI shim bootloaders ...
Acer has fixed a high-severity vulnerability affecting multiple laptop models that could enable local attackers to deactivate UEFI Secure Boot on targeted systems. The Secure Boot security feature ...
Bottom line: Microsoft has addressed a significant security vulnerability that left Windows 11 open to malware attacks at one of the system's most critical levels for more than half a year. It's ...
A crucial Windows security certificate just expired - how to check your PC ...
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