{"id":"OESA-2026-4217","summary":"edk2 security update","details":"EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications.\r\n\r\nSecurity Fix(es):\n\nAn insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.(CVE-2023-49721)","modified":"2026-10-01T02:00:12.952113770Z","published":"2026-09-30T13:47:42Z","upstream":["CVE-2023-49721"],"database_specific":{"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4217"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49721"}],"affected":[{"package":{"name":"edk2","ecosystem":"openEuler:24.03-LTS-SP4","purl":"pkg:rpm/openEuler/edk2&distro=openEuler-24.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"202308-53.oe2403sp4"}]}],"ecosystem_specific":{"noarch":["edk2-aarch64-202308-53.oe2403sp4.noarch.rpm","edk2-help-202308-53.oe2403sp4.noarch.rpm","edk2-ovmf-202308-53.oe2403sp4.noarch.rpm","python3-edk2-devel-202308-53.oe2403sp4.noarch.rpm"],"src":["edk2-202308-53.oe2403sp4.src.rpm"],"x86_64":["edk2-debuginfo-202308-53.oe2403sp4.x86_64.rpm","edk2-debugsource-202308-53.oe2403sp4.x86_64.rpm","edk2-devel-202308-53.oe2403sp4.x86_64.rpm"],"aarch64":["edk2-debuginfo-202308-53.oe2403sp4.aarch64.rpm","edk2-debugsource-202308-53.oe2403sp4.aarch64.rpm","edk2-devel-202308-53.oe2403sp4.aarch64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4217.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"}]}