RCE in Canonical Ltd. Ubuntu Edk Ii

CVE-2023-48733

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.

EPSS: 0.003 (16.9th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-48733?
CVE-2023-48733 is a medium-severity vulnerability in Canonical Ltd. Ubuntu Edk Ii, classified under Initialization of a Resource with an Insecure Default. CVSS score: 6.7/10. Published 2024-02-14.
How severe is CVE-2023-48733?
Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2023-48733 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.