{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2023.11-8"
              }
            ]
          }
        ]
      },
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "5.0.0"
              },
              {
                "fixed": "5.21.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "1e1349e3cbf30c1b2ce74e531d4dd0fd52c45be1"
            },
            {
              "fixed": "761d134ceabd306f57acfb0ca51f59b03751a5b0"
            }
          ],
          "repo": "https://github.com/canonical/lxd",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.",
  "id": "CVE-2023-49721",
  "modified": "2026-04-01T23:07:45.321655243Z",
  "published": "2024-02-14T22:15:47.530Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48733"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137"
    },
    {
      "type": "ARTICLE",
      "url": "https://www.openwall.com/lists/oss-security/2024/02/14/4"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}