ByteOS Network

NVD Vulnerability Details :

CVE-2023-49721

Analyzed

Source-security@ubuntu.com

Published At-14 Feb, 2024 | 22:15

Updated At-26 Aug, 2025 | 17:19

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

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Type	Version	Base score	Base severity	Vector
Secondary	3.1	6.7	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

>>lxd>>Versions from 5.0.0(inclusive) to 5.21.0(exclusive)

tianocore>>edk2>>Versions up to 2023.11-8(inclusive)

CWE ID	Type	Source
CWE-276	Secondary	134c704f-9b21-4f2e-91b3-4a467353bcc0

Hyperlink	Source	Resource
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137	security@ubuntu.com	Issue Tracking
https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139	security@ubuntu.com	Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2023-48733	security@ubuntu.com	Third Party Advisory
https://www.openwall.com/lists/oss-security/2024/02/14/4	security@ubuntu.com	Mailing List
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137	af854a3a-2127-422b-91ae-364da2661108	Issue Tracking
https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139	af854a3a-2127-422b-91ae-364da2661108	Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2023-48733	af854a3a-2127-422b-91ae-364da2661108	Third Party Advisory
https://www.openwall.com/lists/oss-security/2024/02/14/4	af854a3a-2127-422b-91ae-364da2661108	Mailing List