CVE-2023-48733
MEDIUM
6.7
CVSS Score
Published: February 14, 2024 at 09:54 PM UTC
Updated: June 17, 2026 at 06:34 AM UTC
3 products affected across 3 vendorsDebian LinuxLXDEDK2
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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.3%
SSVC
PoC
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v ≤ 2023.11-8v < 2023.05-2ubuntu0.1
Affected range stops below 2023.05-2ubuntu0.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (5)
Issue TrackingThird Party Advisory
Source: [email protected]
https://nvd.nist.gov/vuln/detail/CVE-2023-48733SSVC — Action Prioritization
SSVCPoCNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.7MEDIUMcanonical
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-1188
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