CVE-2025-14858 (GCVE-0-2025-14858)

Vulnerability from cvelistv5 – Published: 2026-04-07 19:57 – Updated: 2026-04-07 20:42
VLAI?
Title
Semtech LR11xx Encrypted Firmware Disclosure
Summary
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.
Severity ?
5.1 (Medium)
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/AU:N/R:A/V:C/RE:M
CWE
  • CWE-226 - Sensitive Information in Resource Not Removed Before Reuse
Assigner
SWI
References
Impacted products
Vendor Product Version
Semtech LR1110 Affected: 0 , < TRX FW 0x0402 (custom)
Create a notification for this product.
    Semtech LR1120 Affected: 0 , < TRX FW 0x0202 (custom)
Create a notification for this product.
    Semtech LR1121 Affected: 0 , < TRX FW 0x0104 (custom)
Create a notification for this product.
Date Public ?
2026-04-06 18:07
Credits
Egor (radioegor146) Koleda, https://github.com/radioegor146
Show details on NVD website
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.