threat-intel Old UEFI Shims Expose Systems to Secure Boot Bypass A vulnerability in older Microsoft-signed UEFI shim bootloaders has been discovered, allowing attackers to bypass Secure Boot protections and potentially deploy bootkits on UEFI-based systems. These shims, some dating back to 2013, were previously trusted by Secure Boot, but Microsoft has now revoked them. System admin… SecurityWeek · Jul 16, 2026 High CVE-2026-8863CVE-2026-10797uefisecure bootvulnerability
threat-intel 11 Old Microsoft-Signed Linux UEFI Shims Could Let Attackers Bypass Secure Boot Researchers have discovered 11 outdated, Microsoft-signed UEFI shim bootloaders that could be exploited to bypass Secure Boot on systems relying on these shims. These bootloaders, primarily from versions 0.7 and earlier,… The Hacker News · Jul 14, 2026 High CVE-2026-8863CVE-2026-10797FIuefisecure bootvulnerability
vulnerability Forgotten UEFI shims undermining Secure Boot Researchers at ESET discovered 11 old, Microsoft-signed UEFI shim bootloaders from 2026-02-16 that could bypass UEFI Secure Boot on most systems. These shims, used by various software packages, allowed attackers to deplo… WeLiveSecurity · Jul 14, 2026 High CVE-2026-8863CVE-2026-10797CVE-2020-10713uefisecure bootrevocation
vulnerability Microsoft Patches Record 206 Flaws, Including Three Zero-Days and Critical RCE Bugs Microsoft released a significant security update addressing 206 vulnerabilities across its software portfolio, including multiple critical Remote Code Execution (RCE) flaws and several zero-days. The update focuses on pa… The Hacker News · Jun 10, 2026 Critical CVE-2025-10263CVE-2026-8863CVE-2026-45657USzero-dayrcebitlocker
