Tech

Code-execution flaw in UEFI firmware affects most servers on planet Earth

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 27/10/2026, 22:58:24 UTC.

Briefings

A critical code-execution flaw in UEFI firmware affects nearly all servers globally, with a severity rating of 9.5/10. The vulnerability, CVE-2026-97631, resides in the TianoCore EDK II codebase used by major vendors like AMI, Insyde, and Microsoft's Project Mu. Attackers can exploit this to execute malicious code before the OS loads, bypassing Secure Boot and TPM defenses. The flaw allows attackers to install persistent payloads that run each time early boot occurs, despite the initial payload having no persistence. This represents a significant security risk for the global server infrastructure.

Key points

• The vulnerability CVE-2026-97631 is a memory-corruption flaw in the ICMP component of the TianoCore EDK II codebase.
• Virtually all UEFI suppliers and cloud providers use the reference code containing the vulnerable component, including AMI, Insyde, and Microsoft's Project Mu.

Context

This finding highlights a widespread security risk in global server infrastructure, as the TianoCore EDK II is the preeminent solution for UEFI specifications. The vulnerability affects the boot-time firmware used by most of the world's server vendors and data centers, creating a critical exposure for the global server ecosystem.

Limitations

The evidence is limited to the article's description of the vulnerability and its impact on global server infrastructure. No specific dates of exploitation or affected systems are provided, and the article does not offer further technical details or remediation steps.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 28/10/2026, 00:10:50 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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