vulnerability
Ubuntu: USN-6638-1 (CVE-2023-48733): EDK II vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:M/C:C/I:C/A:C) | Feb 15, 2024 | Feb 15, 2024 | Mar 27, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:M/C:C/I:C/A:C)
Published
Feb 15, 2024
Added
Feb 15, 2024
Modified
Mar 27, 2026
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.
Solutions
ubuntu-upgrade-efi-shell-aa64ubuntu-upgrade-efi-shell-armubuntu-upgrade-efi-shell-x64ubuntu-upgrade-ovmfubuntu-upgrade-qemu-efiubuntu-upgrade-qemu-efi-aarch64ubuntu-upgrade-qemu-efi-arm
Rapid7 Labs
2026 Global Threat Landscape Report
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