CVE-2023-5342

Shim: expired secure boot certificate

Published Aug 15, 2025 CVSS 3.1 · 4.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2023-57659 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The original vulnerability was not valid. 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.
Title Shim: expired secure boot certificate
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-324
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 4.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N'}

Type Values Removed Values Added
Description The original vulnerability was not valid.
Weaknesses

Sources

Status
PUBLISHED
Assigner
fedora
Published
Updated
Aug 15, 2025, 12:57 PM
Reserved
Oct 2, 2023, 4:08 PM
Status
Deferred
Published
Aug 14, 2025, 1:15 PM
Modified
Jun 17, 2026, 6:48 AM