Dashboard / CVE-2026-97631

CVE-2026-97631

CRITICAL
INFO Priority: 0.06 BB Relevance: 79/100
Published: 2026-10-22 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: Present
VC: High
VI: High
VA: High

Description

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.

Weakness Classification (3)

Affected Software (4)

VendorProductVersion
TianoCore EDK2 0
TianoCore EDK2 0
TianoCore EDK2 0
TianoCore EDK2 0

References & Advisories (6)

Bug Bounty Relevance

79 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.5 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.64%
Raw Score 0.006350
Percentile 50.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00635
2026-10-28
0.00483

Intelligence Sources

mitre ref →
nvd ref →

External Links