{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-3885", "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e", "state": "PUBLISHED", "assignerShortName": "zdi", "dateReserved": "2025-04-22T21:43:39.536Z", "datePublished": "2025-05-22T00:49:42.558Z", "dateUpdated": "2025-05-22T18:33:03.160Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "99f1926a-a320-47d8-bbb5-42feb611262e", "shortName": "zdi", "dateUpdated": "2025-05-22T00:49:42.558Z"}, "title": "Harman Becker MGU21 Bluetooth Improper Input Validation Denial-of-Service Vulnerability", "descriptions": [{"lang": "en", "value": "Harman Becker MGU21 Bluetooth Improper Input Validation Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Harman Becker MGU21 devices. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the Bluetooth stack of the BCM89359 chipset. The issue results from the lack of proper validation of Bluetooth frames. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-23942."}], "affected": [{"vendor": "Harman Becker", "product": "MGU21", "versions": [{"version": "MGU21_22-07 firmware with BCM89359 wireless chipset; LMP Version: 5.0 (0x9); LMP Subversion: 0x420d", "status": "affected"}], "defaultStatus": "unknown"}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-20", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}], "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-251/", "name": "ZDI-25-251", "tags": ["x_research-advisory"]}], "dateAssigned": "2025-04-22T21:43:39.572Z", "datePublic": "2025-04-24T00:14:20.619Z", "source": {"lang": "en", "value": "Aaron Luo, Gloria Chen, Omar Yang, Spencer Hsieh, and Vit Sembera of VicOne"}, "metrics": [{"format": "CVSS", "cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.3, "baseSeverity": "MEDIUM"}}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-05-22T18:29:02.500327Z", "id": "CVE-2025-3885", "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": "2025-05-22T18:33:03.160Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Harman Becker MGU21 Bluetooth Improper Input Validation Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Harman Becker MGU21 devices. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the Bluetooth stack of the BCM89359 chipset. The issue results from the lack of proper validation of Bluetooth frames. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-23942."}, {"lang": "es", "value": "Vulnerabilidad de denegaci\u00f3n de servicio por validaci\u00f3n incorrecta de entrada en Harman Becker MGU21 Bluetooth. Esta vulnerabilidad permite a atacantes adyacentes a la red crear una condici\u00f3n de denegaci\u00f3n de servicio en las instalaciones afectadas de dispositivos Harman Becker MGU21. No se requiere autenticaci\u00f3n para explotar esta vulnerabilidad. La falla espec\u00edfica existe en la pila Bluetooth del chipset BCM89359. El problema se debe a la falta de una validaci\u00f3n adecuada de las tramas Bluetooth. Un atacante puede aprovechar esta vulnerabilidad para crear una condici\u00f3n de denegaci\u00f3n de servicio en el sistema. Anteriormente, se denominaba ZDI-CAN-23942."}], "id": "CVE-2025-3885", "lastModified": "2025-05-23T15:55:02.040", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "[email protected]", "type": "Secondary"}]}, "published": "2025-05-22T01:15:54.323", "references": [{"source": "[email protected]", "url": "https://www.zerodayinitiative.com/advisories/ZDI-25-251/"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "[email protected]", "type": "Primary"}]}

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