CVE-2023-5342

MEDIUM

Published Aug 14, 2025 Modified Apr 15, 2026 CWE-324

Description

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.

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CVSS v3.1 Score

4.1

MEDIUM

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

Weakness Type (CWE)

CWE-324 CWE-324

References

Other References

https://access.redhat.com/security/cve/CVE-2023-5342 https://bodhi.fedoraproject.org/updates/FEDORA-2024-2aa28a4cfc https://bugzilla.redhat.com/show_bug.cgi?id=2198977 https://bugzilla.redhat.com/show_bug.cgi?id=2388707

Frequently Asked Questions

What is CVE-2023-5342? +

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. It has a CVSS v3.1 base score of 4.1 (MEDIUM).

How severe is CVE-2023-5342? +

CVE-2023-5342 has a CVSS v3.1 score of 4.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2023-5342? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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