CVE-2023-48733

MEDIUM

Canonical LXD - Insecure Default UEFI Shell Configuration

Title source: llm

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.

Core 5

Core References

Mailing List

Issue Tracking issue-tracking

Third Party Advisory issue-tracking

Mailing List mailing-list

Issue Tracking issue-tracking

CVSS v3 6.7

EPSS 0.0026

EPSS Percentile 16.7%

Attack Vector LOCAL

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

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

CWE

CWE-1188

Status published

Products (4)

canonical/lxd 5.0 candidate

canonical/lxd 5.21 candidate (2 CPE variants)

debian/debian_linux 10.0

tianocore/edk2 < 2023.11-8

Published Feb 14, 2024

Tracked Since Feb 18, 2026