What is CVE-2026-97631?

CVE-2026-97631 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Pre-boot RCE in EDK II PXE driver

Which CVE IDs does CVE-2026-97631 cover?

CVE-2026-97631 covers the following CVE IDs: CVE-2026-97631. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-97631?

CVE-2026-97631 affects 4 products, including: azl3 edk2 20240524git3e722403cd16-20 on Azure Linux 3.0; azl3 edk2 20240524git3e722403cd16-21 on Azure Linux 3.0; azl3 qemu 10.1.0-1 on Azure Linux 3.0; azl3 qemu 10.1.0-2 on Azure Linux 3.0.

CVE-2026-97631High

Pre-boot RCE in EDK II PXE driver

Vendor

Microsoft Security Response Center (MSRC)

Published

October 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-97631 →

🎯 Affected products4

azl3 edk2 20240524git3e722403cd16-20 on Azure Linux 3.0
azl3 edk2 20240524git3e722403cd16-21 on Azure Linux 3.0
azl3 qemu 10.1.0-1 on Azure Linux 3.0
azl3 qemu 10.1.0-2 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97631
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade