CVE-2025-14858

MEDIUMNVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 98% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.1Exploit: NoneExposed: 0

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

The Semtech LR11xx LoRa transceivers running early versions of firmware contains an information disclosure vulnerability in its firmware validation functionality. When a host issues a firmware validity check command via the SPI interface, the device decrypts the provided encrypted firmware package block-by-block to validate its integrity. However, the last decrypted firmware block remains uncleared in memory after the validation process completes. An attacker with access to the SPI interface can subsequently issue memory read commands to retrieve the decrypted firmware contents from this residual memory, effectively bypassing the firmware encryption protection mechanism. The attack requires physical access to the device's SPI interface.

CVSS v3
5.1
EG Score
5.1(medium)
EG Risk
23(Track)
EG Risk 23/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity51% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
1.7%
KEV
Not listed

Published

April 7, 2026

Last Modified

April 8, 2026

References (1)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 38× 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.

Showing the most recent 100 of 118 total refreshes for this CVE.

  1. 2026-07-23 02:49 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-22 14:07 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
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  6. 2026-07-19 02:28 UTCEPSS rescore
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  8. 2026-07-18 10:03 UTCEPSS rescore
  9. 2026-07-16 17:02 UTCEPSS rescore
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  11. 2026-07-15 16:57 UTCEPSS rescore
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  13. 2026-07-15 01:59 UTCEPSS rescore
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  15. 2026-07-13 22:29 UTCEPSS rescore
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  17. 2026-07-13 06:12 UTCEPSS rescore
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  20. 2026-07-11 08:26 UTCEPSS rescore
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  22. 2026-07-08 15:14 UTCEPSS rescore
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  24. 2026-07-06 16:26 UTCEPSS rescore
  25. 2026-07-06 02:22 UTCEPSS rescore
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  1. 2026-07-06 02:22 UTCEPSS rescore
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  4. 2026-07-01 15:06 UTCEPSS rescore
  5. 2026-06-30 23:21 UTCEPSS rescore
  6. 2026-06-28 14:07 UTCEPSS rescore
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  8. 2026-06-28 04:55 UTCEPSS rescore
  9. 2026-06-27 03:08 UTCEPSS rescore
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  11. 2026-06-25 13:49 UTCEPSS rescore
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  13. 2026-06-23 21:32 UTCEPSS rescore
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  22. 2026-06-18 17:52 UTCEPSS rescore
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  25. 2026-06-15 17:48 UTCEPSS rescore
  26. 2026-06-14 23:17 UTCEPSS rescore
  27. 2026-06-13 22:59 UTCEPSS rescore
  28. 2026-06-13 22:59 UTCEPSS rescore
  29. 2026-06-12 23:11 UTCEPSS rescore
  30. 2026-06-11 21:19 UTCGHSA enrichment
  31. 2026-06-11 13:59 UTCEPSS rescore
  32. 2026-06-10 22:18 UTCEPSS rescore
  33. 2026-06-10 13:21 UTCEPSS rescore
  34. 2026-06-10 12:49 UTCGHSA enrichment
  35. 2026-06-09 13:48 UTCGHSA enrichment
  36. 2026-06-08 14:16 UTCEPSS rescore
  37. 2026-06-08 14:16 UTCEPSS rescore
  38. 2026-06-08 08:49 UTCGHSA enrichment
  39. 2026-06-07 15:24 UTCEPSS rescore
  40. 2026-06-07 10:10 UTCEG score recompute▲ 5.10
  41. 2026-06-07 10:10 UTCGHSA enrichment
  42. 2026-06-06 13:47 UTCEPSS rescore
  43. 2026-06-06 13:47 UTCEPSS rescore
  44. 2026-06-05 22:46 UTCEPSS rescore
  45. 2026-06-05 22:46 UTCEPSS rescore
  46. 2026-06-05 06:10 UTCEPSS rescore
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  48. 2026-06-04 13:11 UTCEPSS rescore
  49. 2026-06-04 13:11 UTCEPSS rescore
  50. 2026-06-02 20:12 UTCEPSS rescore
  51. 2026-06-02 20:12 UTCEPSS rescore
  52. 2026-06-01 13:51 UTCEPSS rescore
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  54. 2026-05-31 22:30 UTCEPSS rescore
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  74. 2026-05-26 07:18 UTCEPSS rescore
  75. 2026-05-24 16:56 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-14858?
CVE-2025-14858 is a medium vulnerability published on April 7, 2026. The Semtech LR11xx LoRa transceivers running early versions of firmware contains an information disclosure vulnerability in its firmware validation functionality. When a host issues a firmware validity check command via the SPI interface, the device decrypts the provided encrypted firmware package…
When was CVE-2025-14858 disclosed?
CVE-2025-14858 was first published in the National Vulnerability Database on April 7, 2026, with the most recent update on April 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-14858 actively exploited?
CVE-2025-14858 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-14858?
CVE-2025-14858 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2025-14858?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-14858, 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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