CVE-2023-48733 MEDIUM

CVE-2023-48733

Vendor Canonical Ltd.
Product Ubuntu EDK II
Published February 14, 2024
Last update May 8, 2025

CVSS base score

6.7/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. This allows an OS-resident attacker to bypass Secure Boot.

Key dates

02Disclosure timeline

February 14, 2024 CVE published
May 8, 2025 Record updated