CVE-2025-3885
CVE-2025-3885 is a medium-severity vulnerability in Samsung Harman Mgu21 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-16095
- Weakness: CWE-20
- Affected product: Samsung Harman Mgu21 Firmware
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-3885?
- 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.
- How severe is CVE-2025-3885?
- CVE-2025-3885 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-3885 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-3885?
- CVE-2025-3885 affects Samsung Harman Mgu21 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-3885?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-3885 have an EU (EUVD) identifier?
- Yes. CVE-2025-3885 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16095.
- When was CVE-2025-3885 published?
- CVE-2025-3885 was published on 2025-05-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:samsung:harman_mgu21_firmware:mgu21_22-07:*:*:*:*:*:*:*
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