CVE-2026-97631: Pre-boot RCE in EDK II PXE driver
Pre-boot RCE in EDK II PXE driver
- Published by source
- 2026-10-13
- First seen by Reality Radar
- 2026-10-31
- Last verified
- 2026-10-31
Affected
- Manufacturer
- Microsoft
- Products
- azl3 edk2 20240524git3e722403cd16-20 on Azure Linux 3.0 azl3 qemu 10.1.0-1 on Azure Linux 3.0
- CPE
- cpe:2.3:a:microsoft:azl3_edk2_20240524git3e722403cd16-20:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:azl3_qemu_10.1.0-1:*:*:*:*:*:*:*:*
Whether your exact unit is affected depends on the model, serial number and region in the official notice.
What the official notice says
Risk: Critical
Remedy / actions:
- Install the latest Microsoft security update
Is this affecting you?
Add what you own or use and Reality Radar will tell you when official changes match it — with evidence and next steps.
Sources
- Microsoft Security Update Guide (MSRC) Tier A · official published 2026-10-13
Evidence ledger
Every piece of evidence we store is appended to a public hash chain, so later edits are detectable. Anyone can re-verify it.
| Entry | Kind | Observed | Evidence hash | Entry hash |
|---|---|---|---|---|
| #3377 | new | 2026-10-31 | a0bf9bc0566b…6747cb | 080aa6d2c284…8f3c4a |
Chain head: #3380 4d4232c661b9…b678ae