Yhn BusinessRetail first seen 9 d ago, last 3 d ago, peak #6

EDKII vulnerability found to bypass UEFI Secure Boot in PXE Boot

Original: EDKII CVE enables UEFI Secure Boot bypass in almost every use case of PXE Boot

A newly disclosed vulnerability in EDKII, the open-source implementation of UEFI used widely across PC firmware, allows attackers to bypass UEFI Secure Boot in nearly every scenario where network-based PXE Boot is used to start a machine. The flaw, catalogued as CVE-2026-97631 and listed in the US National Vulnerability Database, is drawing attention from security researchers and system administrators concerned that network boot deployments may silently defeat Secure Boot protections.

Why now: The disclosure affects the firmware of virtually all modern PCs using PXE network boot, undermining a core security guarantee

EDKIIUEFI Secure BootPXE BootCVE-2026-97631NVD

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Evidence

• EDKII CVE enables UEFI Secure Boot bypass in almost every use case of PXE Boot · OgsyedIE · 6

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