11 Old Signed UEFI Shims Just Broke Secure Boot on Millions of PCs
ESET found 11 Microsoft-signed UEFI shims, some over a decade old, that let attackers bypass Secure Boot without a single new exploit. 11 Old Signed UEFI Shims Just Broke Secure Boot on Millions of PCs on Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses .

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What this story is about
ESET found 11 Microsoft-signed UEFI shims, some over a decade old, that let attackers bypass Secure Boot without a single new exploit. 11 Old Signed UEFI Shims Just Broke Secure Boot on Millions of PCs on Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses .
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This brief is filed under Oracle security alerts and Critical Patch Update watch.
secure bootuefiesetbootkitcve-2026-8863firmware securityOracle Critical Patch UpdateOracle security alertsOracle CVEDBA patchingsecurity advisories