A critical 16-year-old flaw in EDK II, the open-source code that most hardware makers use to build UEFI firmware, can allow an attacker to run code on a machine before its operating system loads, but only while the machine is booting over the network.

UEFI firmware is the software that runs first when a computer is switched on, before the operating system. An attacker who can reach the machine



Source: TheHackerNews
Source Link: https://thehackernews.com/2026/10/critical-16-year-old-uefi-flaw-can-run.html