CVE-2025-14858 | Semtech LR1110/LR1120/LR1121 SPI Interface sensitive information in resource not removed before reuse (psa-2026-001)

VDB-355945 · CVE-2025-14858 · PSA-2026-001 SEMTECH LR1110/LR1120/LR1121 SPI INTERFACE SENSITIVE INFORMATION IN RESOURCE NOT REMOVED BEFORE REUSE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 2.4 $0-$5k 0.91+ Summaryinfo A vulnerability identified as problematic has been detected in Semtech LR1110, LR1120 and LR1121. The impacted element is an unknown function of the component SPI Interface. This manipulation causes sensitive information in resource not removed before reuse. This vulnerability is registered as CVE-2025-14858. It is feasible to perform the attack on the physical device. No exploit is available. Detailsinfo A vulnerability has been found in Semtech LR1110, LR1120 and LR1121 (affected version not known) and classified as problematic. Affected by this vulnerability is some unknown functionality of the component SPI Interface. The manipulation with an unknown input leads to a sensitive information in resource not removed before reuse vulnerability. The CWE definition for the vulnerability is CWE-226. The product releases a resource such as memory or a file so that it can be made available for reuse, but it does not clear or "zeroize" the information contained in the resource before the product performs a critical state transition or makes the resource available for reuse by other entities. As an impact it is known to affect confidentiality. The summary by CVE is: 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. The weakness was published by Egor as psa-2026-001. The advisory is shared at semtech.com. This vulnerability is known as CVE-2025-14858 since 12/18/2025. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Semtech Name LR1110 LR1120 LR1121 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 2.4 VulDB Meta Temp Score: 2.4 VulDB Base Score: 2.4 VulDB Temp Score: 2.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Sensitive information in resource not removed before reuse CWE: CWE-226 / CWE-200 / CWE-284 CAPEC: 🔒 ATT&CK: 🔒 Physical: Yes Local: Yes Remote: No Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 12/18/2025 CVE reserved 04/07/2026 +109 days Advisory disclosed 04/07/2026 +0 days VulDB entry created 04/07/2026 +0 days VulDB entry last update Sourcesinfo Advisory: psa-2026-001 Researcher: Egor Status: Confirmed CVE: CVE-2025-14858 (🔒) GCVE (CVE): GCVE-0-2025-14858 GCVE (VulDB): GCVE-100-355945 Entryinfo Created: 04/07/2026 23:32 Changes: 04/07/2026 23:32 (69) Complete: 🔍 Cache ID: 99:417:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸