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cve-2026-0390

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CVE-2026-0390 is a UEFI Secure Boot security feature bypass vulnerability affecting the Windows Boot Loader. Microsoft describes it as a local issue that could allow an authorized attacker to sidestep a security control during startup, weakening the boot trust chain. This class of flaw has significant implications for enterprise fleets and endpoint hardening, as it strikes at a fundamental protection in modern PC firmware security. Discussions on WindowsForum.com cover the technical details, mitigation strategies, and the broader impact on Windows boot security.
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    CVE-2026-0390 Secure Boot Bypass: Protect Windows Boot Trust Chain

    Microsoft’s CVE-2026-0390 is another reminder that Secure Boot is only as strong as the trust chain behind it. The vulnerability, described by Microsoft as a UEFI Secure Boot security feature bypass, affects the Windows Boot Loader and is framed as a local issue that could let an authorized...
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    • cve-2026-0390 secure boot uefi security windows boot loader
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    • Forum: Security Alerts
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