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cve 2025 55338

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CVE-2025-55338 is a security vulnerability affecting Microsoft's BitLocker full-disk encryption technology. Confirmed in October 2025, this issue involves a missing ability to patch ROM code, leaving certain boot-path checks exposed. It is part of a disclosure cycle that includes multiple BitLocker security-feature bypass vulnerabilities exploitable with brief physical access. Microsoft rates CVE-2025-55338 as important with a CVSS score around 6.1. The vendor has published cumulative updates to address this vulnerability. Users and enterprise IT administrators are advised to apply the latest Windows updates and consider enabling TPM PIN for enhanced protection against boot path attacks.
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    BitLocker 2025 CVEs: Patch Boot Path Attacks with TPM PIN

    Microsoft confirmed on October 14, 2025 that BitLocker — the Windows full‑disk encryption technology relied on by millions of personal and enterprise devices — is affected by multiple security‑feature bypass vulnerabilities that can be exploited with only brief physical access to a machine. The...
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    • bitlocker boot security cve 2025 55333 cve 2025 55338
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    • Forum: Windows News
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