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. The 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.
History

Fri, 15 Aug 2025 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Samsung
Samsung harman Mgu21
Samsung harman Mgu21 Firmware
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:h:samsung:harman_mgu21:-:*:*:*:*:*:*:*
cpe:2.3:o:samsung:harman_mgu21_firmware:mgu21_22-07:*:*:*:*:*:*:*
Vendors & Products Samsung
Samsung harman Mgu21
Samsung harman Mgu21 Firmware
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Thu, 22 May 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 22 May 2025 01:15:00 +0000

Type Values Removed Values Added
Description 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. The 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.
Title Harman Becker MGU21 Bluetooth Improper Input Validation Denial-of-Service Vulnerability
Weaknesses CWE-20
References
Metrics cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published:

Updated: 2025-05-22T18:33:03.160Z

Reserved: 2025-04-22T21:43:39.536Z

Link: CVE-2025-3885

cve-icon Vulnrichment

Updated: 2025-05-22T18:32:53.964Z

cve-icon NVD

Status : Analyzed

Published: 2025-05-22T01:15:54.323

Modified: 2025-08-15T16:37:05.047

Link: CVE-2025-3885

cve-icon Redhat

No data.