What is CVE-2023-49721?

CVE-2023-49721 is a medium-severity vulnerability in Canonical Ltd. Lxd, classified under Incorrect Default Permissions. CVSS score: 6.7/10. Published 2024-02-14.

How severe is CVE-2023-49721?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Canonical Ltd. Lxd

CVE-2023-49721

An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.

EPSS: 0.002 (14.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Canonical Ltd. Lxd — versions 0
Tianocore Edk2
Canonical Lxd

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

security@ubuntu.com (issue-tracking, Issue Tracking)
security@ubuntu.com (issue-tracking, Third Party Advisory)
security@ubuntu.com (mailing-list, Mailing List)
security@ubuntu.com (issue-tracking, Issue Tracking)

Frequently asked questions

What is CVE-2023-49721?: CVE-2023-49721 is a medium-severity vulnerability in Canonical Ltd. Lxd, classified under Incorrect Default Permissions. CVSS score: 6.7/10. Published 2024-02-14.
How severe is CVE-2023-49721?: Medium severity. CVSS v3 base score is 6.7 out of 10.