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Threat Intel

Critical UEFI Firmware Flaw Allows Attackers to Execute Malicious Code Before OS Boots

GBHackers ·

A critical vulnerability in EDK II’s PXE network boot driver could allow unauthenticated attackers to execute malicious code before the operating system loads. This vulnerability, tracked as CVE-2026-97631, affects ICMP error processing during both IPv4 and IPv6 network boot, which exposes the firmware memory to potential writes by attackers. The advisory identifies the EDK II […] The post Critical UEFI Firmware Flaw Allows Attackers to Execute Malicious Code Before OS Boots appeared first on GBHackers Security | #1 Globally Trusted Cyber Security News Platform .

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