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Hydroph0bia – fixed SecureBoot bypass for UEFI firmware from Insyde H2O (2025)


This post is likely the final one about a vulnerability I dubbed Hydroph0bia (as a pun on Insyde H2O) aka CVE-2025-4275 or INSYDE-SA-2025002. This part is about checking how Insyde fixed the vulnerability and if it's possible to bypass their fixes.

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