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.

CVSS v3.1

4.1 MEDIUM

EPSS

0.08%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

CVSS v3.1 Detail

Attack VectorLOCAL

Attack ComplexityHIGH

Privileges RequiredHIGH

User InteractionNONE

ScopeUNCHANGED

ConfidentialityNONE

IntegrityHIGH

AvailabilityNONE

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

Connections

1 relationships

Timeline

disclosure → media coverage

Aug 14, 2025

Disclosure — published as a CVE record. · last revised by NVD Apr 15, 2026