CVE-2023-48733

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.

CVSS v3 6.7 MEDIUM

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137	Issue Tracking
https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139	Issue Tracking
https://lists.debian.org/debian-lts-announce/2024/06/msg00028.html	Mailing List
https://nvd.nist.gov/vuln/detail/CVE-2023-48733	Third Party Advisory
https://www.openwall.com/lists/oss-security/2024/02/14/4	Mailing List
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137	Issue Tracking
https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139	Issue Tracking
https://lists.debian.org/debian-lts-announce/2024/06/msg00028.html	Mailing List
https://nvd.nist.gov/vuln/detail/CVE-2023-48733	Third Party Advisory
https://www.openwall.com/lists/oss-security/2024/02/14/4	Mailing List

Configurations

Configuration 1 (hide)

OR	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::-::::::*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-02-14 22:15

Updated : 2025-08-26 17:19

NVD link : CVE-2023-48733

Mitre link : CVE-2023-48733

CVE.ORG link : CVE-2023-48733

JSON object : View

Products Affected

canonical

lxd

tianocore

edk2

debian

debian_linux

CWE

CWE-1188

Initialization of a Resource with an Insecure Default

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