CVE-2025-14858

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

No CVSS.

References

Link	Resource
https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-001

Configurations

No configuration.

History

07 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 20:16

Updated : 2026-04-08 21:27

NVD link : CVE-2025-14858

Mitre link : CVE-2025-14858

CVE.ORG link : CVE-2025-14858

JSON object : View

Products Affected

No product.

CWE

CWE-226

Sensitive Information in Resource Not Removed Before Reuse

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