CVE-2026-97631 (GCVE-0-2026-97631)

Vulnerability from cvelistv5 – Published: 2026-10-22 16:32 – Updated: 2026-10-28 16:06
VLAI
Title
Pre-boot RCE in EDK II PXE driver
Summary
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.
Severity
9.5 (Critical)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • CWE-131 - Incorrect calculation of buffer size
  • CWE-787 - Out-of-bounds write
Assigner
TianoCore CNA under the mitre root
CNA scorecard – unranked: 1 record in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
TianoCore EDK2 Affected: 0 , ≤ edk2-stable202608 (custom)
guessed Create a notification for this product.
Date Public
2026-10-22 16:32
Credits
Alex Matrosov (Anthropic) Dan Holmes-Mitra (Google)
Show details on NVD website
To clipboard 

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