CVE-2023-48733
edk2 - security update
6.7
MEDIUM
CVSS 3.1
EPSS 0.01%
Description
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.
How to fix CVE-2023-48733
To remediate CVE-2023-48733, upgrade the affected package to a fixed version below.
- Debian/edk2—upgrade to 2020.11-2+deb11u2 or later
- Debian/edk2—upgrade to 0~20181115.85588389-3+deb10u4 or later
- —upgrade to 2020.11-2+deb11u2 or later
Is CVE-2023-48733 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2020.11-2+deb11u2
- from 0, < 0~20181115.85588389-3+deb10u4
- from 0, < 2020.11-2+deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |