{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-14858", "assignerOrgId": "747bec18-acd0-4d99-a5c8-5e366c66ab7e", "state": "PUBLISHED", "assignerShortName": "SWI", "dateReserved": "2025-12-18T00:09:38.279Z", "datePublished": "2026-04-07T19:57:43.422Z", "dateUpdated": "2026-04-07T20:42:41.321Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "747bec18-acd0-4d99-a5c8-5e366c66ab7e", "shortName": "SWI", "dateUpdated": "2026-04-07T19:57:43.422Z"}, "title": "Semtech LR11xx Encrypted Firmware Disclosure", "datePublic": "2026-04-06T18:07:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-226", "description": "CWE-226 Sensitive Information in Resource Not Removed Before Reuse", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-37", "descriptions": [{"lang": "en", "value": "CAPEC-37 Retrieve Embedded Sensitive Data"}]}], "affected": [{"vendor": "Semtech", "product": "LR1110", "modules": ["firmware"], "versions": [{"status": "affected", "version": "0", "lessThan": "TRX FW 0x0402", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Semtech", "product": "LR1120", "versions": [{"status": "affected", "version": "0", "lessThan": "TRX FW 0x0202", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Semtech", "product": "LR1121", "versions": [{"status": "affected", "version": "0", "lessThan": "TRX FW 0x0104", "versionType": "custom"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:semtech:lr1110:*:*:*:*:*:*:*:*", "versionEndExcluding": "trx_fw_0x0402", "versionStartIncluding": "0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:a:semtech:lr1120:*:*:*:*:*:*:*:*", "versionEndExcluding": "trx_fw_0x0202", "versionStartIncluding": "0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:a:semtech:lr1121:*:*:*:*:*:*:*:*", "versionEndExcluding": "trx_fw_0x0104", "versionStartIncluding": "0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "OR"}], "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "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.<br>"}]}], "references": [{"url": "https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-001"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "PHYSICAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NO", "Recovery": "AUTOMATIC", "valueDensity": "CONCENTRATED", "vulnerabilityResponseEffort": "MODERATE", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.1, "vectorString": "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"}}], "credits": [{"lang": "en", "value": "Egor (radioegor146) Koleda, https://github.com/radioegor146", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-14858", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-07T20:31:31.087152Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-07T20:42:41.321Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-14858", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-07T20:31:31.087152Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-07T20:37:57.438Z"}}], "cna": {"title": "Semtech LR11xx Encrypted Firmware Disclosure", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Egor (radioegor146) Koleda, https://github.com/radioegor146"}], "impacts": [{"capecId": "CAPEC-37", "descriptions": [{"lang": "en", "value": "CAPEC-37 Retrieve Embedded Sensitive Data"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "AUTOMATIC", "baseScore": 5.1, "Automatable": "NO", "attackVector": "PHYSICAL", "baseSeverity": "MEDIUM", "valueDensity": "CONCENTRATED", "vectorString": "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "MODERATE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Semtech", "modules": ["firmware"], "product": "LR1110", "versions": [{"status": "affected", "version": "0", "lessThan": "TRX FW 0x0402", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Semtech", "product": "LR1120", "versions": [{"status": "affected", "version": "0", "lessThan": "TRX FW 0x0202", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "Semtech", "product": "LR1121", "versions": [{"status": "affected", "version": "0", "lessThan": "TRX FW 0x0104", "versionType": "custom"}], "defaultStatus": "unaffected"}], "datePublic": "2026-04-06T18:07:00.000Z", "references": [{"url": "https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-001"}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "value": "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.<br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-226", "description": "CWE-226 Sensitive Information in Resource Not Removed Before Reuse"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:semtech:lr1110:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "trx_fw_0x0402", "versionStartIncluding": "0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:semtech:lr1120:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "trx_fw_0x0202", "versionStartIncluding": "0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:semtech:lr1121:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "trx_fw_0x0104", "versionStartIncluding": "0"}], "operator": "OR"}], "operator": "OR"}], "providerMetadata": {"orgId": "747bec18-acd0-4d99-a5c8-5e366c66ab7e", "shortName": "SWI", "dateUpdated": "2026-04-07T19:57:43.422Z"}}}, "cveMetadata": {"cveId": "CVE-2025-14858", "state": "PUBLISHED", "dateUpdated": "2026-04-07T20:42:41.321Z", "dateReserved": "2025-12-18T00:09:38.279Z", "assignerOrgId": "747bec18-acd0-4d99-a5c8-5e366c66ab7e", "datePublished": "2026-04-07T19:57:43.422Z", "assignerShortName": "SWI"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2025-14858", "lastModified": "2026-04-07T20:16:22.397", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NO", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "PHYSICAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "CONCENTRATED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:A/V:C/RE:M/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE"}, "source": "security@sierrawireless.com", "type": "Secondary"}]}, "published": "2026-04-07T20:16:22.397", "references": [{"source": "security@sierrawireless.com", "url": "https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-001"}], "sourceIdentifier": "security@sierrawireless.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-226"}], "source": "security@sierrawireless.com", "type": "Secondary"}]}

{}

{}