CVE-2023-5342
Shim: expired secure boot certificate
MEDIUM
4.1
CVSS Score
Published: August 15, 2025 at 12:06 PM UTC
Updated: June 17, 2026 at 06:48 AM UTC
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Severity
MEDIUM4.1
Exploit prediction
EPSS 0.1%
SSVC
No known exploit
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.
Affected
We have no canonical product record for this CVE. The source names may not have matched any product.
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 (4)
VDB Entryx_refsource_REDHAT
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2023-5342Issue Trackingx_refsource_REDHAT
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2388707SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
4.1MEDIUMfedora
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusDEFERRED
CWE
CWE-324
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