{"id":"DEBIAN-CVE-2023-48733","details":"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.","modified":"2026-09-15T09:02:46.709123095Z","published":"2024-02-14T22:15:47.320Z","upstream":["CVE-2023-48733"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-48733"}],"affected":[{"package":{"name":"edk2","ecosystem":"Debian:12","purl":"pkg:deb/debian/edk2?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2022.11-6+deb12u1"}]}],"versions":["2022.11-6"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-48733.json"}},{"package":{"name":"edk2","ecosystem":"Debian:13","purl":"pkg:deb/debian/edk2?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2023.11-7"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-48733.json"}},{"package":{"name":"edk2","ecosystem":"Debian:14","purl":"pkg:deb/debian/edk2?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2023.11-7"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-48733.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"}]}