CVE-2023-48733

Published Feb 14, 2024 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3852-1 edk2 security update
Debian DSA Debian DSA DSA-5624-1 edk2 security update
EUVD EUVD EUVD-2023-52766 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.
Ubuntu USN Ubuntu USN USN-6638-1 EDK II vulnerabilities
History
Type Values Removed Values Added
First Time appeared Canonical
Canonical lxd
Debian
Debian debian Linux
Tianocore
Tianocore edk2
CPEs cpe:2.3:a:canonical:lxd:5.0:candidate:*:*:*:*:*:*
cpe:2.3:a:canonical:lxd:5.21:candidate:*:*:*:*:*:*
cpe:2.3:a:canonical:lxd:5.21:edge:*:*:*:*:*:*
cpe:2.3:a:tianocore:edk2:*:-:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Vendors & Products Canonical
Canonical lxd
Debian
Debian debian Linux
Tianocore
Tianocore edk2
Type Values Removed Values Added
Weaknesses CWE-1188
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
canonical
Published
Updated
May 8, 2025, 3:18 PM
Reserved
Dec 5, 2023, 7:36 PM
Status
Analyzed
Published
Feb 14, 2024, 10:15 PM
Modified
Jun 17, 2026, 6:34 AM