uefi-app-spoofing

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Qualcomm exploit chain brings bootloader unlocking freedom to Android flagships

A multi-stage exploit chain in Qualcomm's GBL (Generic Bootloader Library) on Android 16 Snapdragon 8 Elite Gen 5 devices allows bootloader unlocking by exploiting unsigned code loading in the efisp partition, combined with a fastboot command sanitization bypass to set SELinux to Permissive mode. The chain is further leveraged via Xiaomi's Hyper OS MQSAS service to bypass strict OEM bootloader unlock restrictions on Chinese-market devices.

bootloader-unlock qualcomm-gbl exploit-chain selinux-bypass fastboot-vulnerability unsigned-code-execution android-16 snapdragon-8-elite-gen-5 uefi-app-spoofing hyper-os-vulnerability firmware-security oem-restrictions-bypass partition-exploitation
androidauthority.com · ledoge· 1 month ago · 7 min · vulnerability · details · hn 4