Critical UEFI firmware flaw lets attackers run code before boot
A severe security vulnerability in the EDK2 UEFI firmware allows malicious code execution on most servers worldwide during the early boot process.
Vulnerability affects global server infrastructure
The flaw exists within the core EDK2 project that developers use to build UEFI firmware for many systems. This issue impacts a vast number of servers across the planet because they rely on this common codebase. Attackers can exploit the defect to gain control before the operating system loads.
Attackers execute code early in boot
Security researchers identified that the vulnerability permits unauthorized code execution at a critical stage of startup. Once inside, malicious software operates with high privileges before standard security checks take effect. The severity stems from how deeply the flaw integrates into the fundamental firmware architecture.
Widespread impact on enterprise hardware
Most commercial servers depend on this specific version of the firmware for their boot sequence. Organizations using standard industry configurations are therefore at risk without applying a patch. The scope of affected devices extends to data centers and cloud infrastructure globally.
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