What is the CVSS score of CVE-2023-5342?

CVE-2023-5342 has a CVSS 3.1 base score of 4.1 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Red Hat are affected by CVE-2023-5342?

Organizations using Fedora Secure Boot CA certificate shipped with shim in Fedora should be aware of moderate risk from CVE-2023-5342 rated CVSS 4.1.

How to fix or mitigate CVE-2023-5342?

During next maintenance window: Identify affected systems and apply vendor patches when convenient. Monitor vendor channels for patch availability.

Red Hat CVE-2023-5342

MEDIUM

Use of a Key Past its Expiration Date (CWE-324)

2025-08-14 patrick@puiterwijk.org

Information Disclosure Red Hat

4.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.1 MEDIUM

AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N

Red Hat

4.1 LOW

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:06 vuln.today

CVE Published

Aug 14, 2025 - 13:15 nvd

MEDIUM 4.1

DescriptionCVE.org

The Fedora Secure Boot CA certificate shipped with shim in Fedora was expired which could lead to old or invalid signed boot components being loaded.

AnalysisAI

The Fedora Secure Boot CA certificate shipped with shim in Fedora was expired which could lead to old or invalid signed boot components being loaded. Rated medium severity (CVSS 4.1). No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-324. The Fedora Secure Boot CA certificate shipped with shim in Fedora was expired which could lead to old or invalid signed boot components being loaded.

Affected ProductsAI

Fedora was expired which.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.