ESET researchers discovered 11 vulnerable UEFI shim bootloaders signed by Microsoft that allow attackers to bypass UEFI Secure Boot by exploiting decade-old vulnerabilities

https://www.welivesecurity.com/en/eset-research/forgotten-uefi-shims-undermining-secure-boot/
https://www.welivesecurity.com/en/eset-research/forgotten-uefi-shims-undermining-secure-boot/

ESET researchers discovered 11 vulnerable UEFI shim bootloaders signed by Microsoft that allow attackers to bypass UEFI Secure Boot by exploiting decade-old vulnerabilities
Tue, 14 Jul 2026 08:53:00 +0000
https://web-assets.esetstatic.com/wls/2026/07-26/uefi-shims/uefi-shims-secure-boot-vulnerability.jpg
ESET research

Source: WeLive Direct Feed
Source Link: https://www.welivesecurity.com/en/eset-research/forgotten-uefi-shims-undermining-secure-boot/