Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2024-02-14T22:15:47.320

Last Modified

2025-08-26T17:19:40.457

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.7 (MEDIUM)

Weaknesses

Type: Secondary
CWE-1188

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	canonical	lxd	5.0	Yes
Application	canonical	lxd	5.21	Yes
Application	canonical	lxd	5.21	Yes
Application	tianocore	edk2	≤ 2023.11-8	Yes
Operating System	debian	debian_linux	10.0	Yes

References

https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137 Issue Tracking ([email protected])
https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139 Issue Tracking ([email protected])
https://lists.debian.org/debian-lts-announce/2024/06/msg00028.html Mailing List ([email protected])
https://nvd.nist.gov/vuln/detail/CVE-2023-48733 Third Party Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2024/02/14/4 Mailing List ([email protected])
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2024/06/msg00028.html Mailing List (af854a3a-2127-422b-91ae-364da2661108)
https://nvd.nist.gov/vuln/detail/CVE-2023-48733 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2024/02/14/4 Mailing List (af854a3a-2127-422b-91ae-364da2661108)