CVE-2026-97631

CVE-2026-97631 · Pre-boot RCE in EDK II PXE driver

This page contains facts from public vulnerability sources. Check the original advisory before updating.

EDK2 contains a vulnerability in BIOS where a user may cause “Out-of-bounds Write”, Classic Buffer Overflow, and “Incorrect Calculation of Buffer Size” by remote access. Successful exploitation of this vulnerability can lead to arbitrary code execution. It could also impact Confidentiality, Integrity, and Availability.

CVSS 9.5 · Critical · EPSS 0.4%

Published

2026-10-22T16:32:27.619Z

Updated

2026-10-22T16:37:13.437Z

Stack: system

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