CVE-2023-5342

MEDIUMNVD 4.14.1—
EchelonGraph scoreMEDIUM confidence

Score 4.1 from GitHub Security Advisory published 2025-08-14. NVD baseline CVSS 4.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
4.1
EG Score
4.1(medium)
EPSS
0.4%
KEV
Not listed

Published

August 14, 2025

Last Modified

April 15, 2026

References (4)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 23:16 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-22 14:07 UTCEPSS rescore
  4. 2026-07-20 17:06 UTCEPSS rescore
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  16. 2026-07-06 02:22 UTCEPSS rescore
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  1. 2026-06-17 17:51 UTCEPSS rescore
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  3. 2026-06-14 23:16 UTCEPSS rescore
  4. 2026-06-13 22:59 UTCEPSS rescore
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  6. 2026-06-12 23:11 UTCEPSS rescore
  7. 2026-06-11 13:59 UTCEPSS rescore
  8. 2026-06-10 22:17 UTCEPSS rescore
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  22. 2026-06-01 13:51 UTCEPSS rescore
  23. 2026-05-31 22:30 UTCEPSS rescore
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  25. 2026-05-31 00:15 UTCEPSS rescore
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  27. 2026-05-29 13:43 UTCEPSS rescore
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  36. 2026-05-22 21:16 UTCEPSS rescore
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  39. 2026-05-22 21:16 UTCEPSS rescore
  40. 2026-05-22 21:16 UTCEPSS rescore
  41. 2026-05-21 09:50 UTCEG score recompute
  42. 2026-05-21 09:50 UTCGHSA enrichment
  43. 2026-05-20 22:37 UTCEPSS rescore
  44. 2026-05-20 22:37 UTCEPSS rescore
  45. 2026-05-20 22:37 UTCEPSS rescore
  46. 2026-05-20 22:37 UTCEPSS rescore
  47. 2026-05-20 11:21 UTCEPSS rescore
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  51. 2026-05-20 11:21 UTCEPSS rescore
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  54. 2026-05-18 21:30 UTCEPSS rescore
  55. 2026-05-18 21:30 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-5342?
CVE-2023-5342 is a medium vulnerability published on August 14, 2025. 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.
When was CVE-2023-5342 disclosed?
CVE-2023-5342 was first published in the National Vulnerability Database on August 14, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-5342 actively exploited?
CVE-2023-5342 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-5342?
CVE-2023-5342 has a CVSS v3 base score of 4.1 (NVD).
How do I remediate CVE-2023-5342?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5342, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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