{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-7020", "assignerOrgId": "c15abc07-96a9-4d11-a503-5d621bfe42ba", "state": "PUBLISHED", "assignerShortName": "ASRG", "dateReserved": "2025-07-02T12:24:26.302Z", "datePublished": "2025-08-09T12:42:29.150Z", "dateUpdated": "2025-08-11T15:54:36.036Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "modules": ["Multimedia Unit", "IVI", "filesystem", "log dump"], "platforms": ["Dilink 3.0"], "product": "DiLink OS", "vendor": "BYD", "versions": [{"status": "affected", "version": "13.1.32.2307211.1"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Lior Zur Lotan (PlaxidityX)"}], "datePublic": "2025-08-09T12:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>An incorrect encryption implementation vulnerability exists in the system log dump feature of BYD's DiLink 3.0 OS (e.g. in the model ATTO3). An attacker with physical access to the vehicle can bypass the encryption of log dumps on the In-Vehicle Infotainment (IVI) unit's storage. This allows the attacker to access and read system logs containing sensitive data, including personally identifiable information (PII) and location data.</p><p>This vulnerability was introduced in a patch intended to fix CVE-2024-54728.</p>"}], "value": "An incorrect encryption implementation vulnerability exists in the system log dump feature of BYD's DiLink 3.0 OS (e.g. in the model ATTO3). An attacker with physical access to the vehicle can bypass the encryption of log dumps on the In-Vehicle Infotainment (IVI) unit's storage. This allows the attacker to access and read system logs containing sensitive data, including personally identifiable information (PII) and location data.\n\nThis vulnerability was introduced in a patch intended to fix CVE-2024-54728."}], "impacts": [{"capecId": "CAPEC-37", "descriptions": [{"lang": "en", "value": "CAPEC-37 Retrieve Embedded Sensitive Data"}]}], "metrics": [{"cvssV4_0": {"Automatable": "YES", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "PHYSICAL", "baseScore": 5.1, "baseSeverity": "MEDIUM", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "DIFFUSE", "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/V:D/RE:H", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "HIGH"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-656", "description": "CWE-656: Incorrect Encryption Implementation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "c15abc07-96a9-4d11-a503-5d621bfe42ba", "shortName": "ASRG", "dateUpdated": "2025-08-09T12:42:29.150Z"}, "references": [{"tags": ["third-party-advisory"], "url": "https://asrg.io/security-advisories/cve-2025-7020/"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "It is recommended to review and correct the encryption implementation used for system log dumps, ensuring the use of secure key management and proper encryption algorithm implementation practices."}], "value": "It is recommended to review and correct the encryption implementation used for system log dumps, ensuring the use of secure key management and proper encryption algorithm implementation practices."}], "source": {"discovery": "EXTERNAL"}, "title": "BYD DiLink OS Incorrect encryption Implementation of system log dumps", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-08-11T15:54:29.496185Z", "id": "CVE-2025-7020", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-08-11T15:54:36.036Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "An incorrect encryption implementation vulnerability exists in the system log dump feature of BYD's DiLink 3.0 OS (e.g. in the model ATTO3). An attacker with physical access to the vehicle can bypass the encryption of log dumps on the In-Vehicle Infotainment (IVI) unit's storage. This allows the attacker to access and read system logs containing sensitive data, including personally identifiable information (PII) and location data.\n\nThis vulnerability was introduced in a patch intended to fix CVE-2024-54728."}, {"lang": "es", "value": "Existe una vulnerabilidad de implementaci\u00f3n incorrecta del cifrado en la funci\u00f3n de volcado de registros del sistema del sistema operativo DiLink 3.0 de BYD (por ejemplo, en el modelo ATTO3). Un atacante con acceso f\u00edsico al veh\u00edculo puede eludir el cifrado de los volcados de registros en el almacenamiento de la unidad de Infotainment del veh\u00edculo (IVI). Esto le permite acceder y leer registros del sistema que contienen datos confidenciales, como informaci\u00f3n de identificaci\u00f3n personal (PII) y datos de ubicaci\u00f3n. Esta vulnerabilidad se introdujo en un parche destinado a corregir CVE-2024-54728."}], "id": "CVE-2025-7020", "lastModified": "2025-08-11T18:32:48.867", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "YES", "Recovery": "NOT_DEFINED", "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": "LOW", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "DIFFUSE", "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/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:Y/R:X/V:D/RE:H/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "HIGH"}, "source": "cve@asrg.io", "type": "Secondary"}]}, "published": "2025-08-09T13:15:25.180", "references": [{"source": "cve@asrg.io", "url": "https://asrg.io/security-advisories/cve-2025-7020/"}], "sourceIdentifier": "cve@asrg.io", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-656"}], "source": "cve@asrg.io", "type": "Secondary"}]}

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