Arbitrary file upload in Dbbroadcast Mozart Dds Next 100
CVE-2025-66255
Unauthenticated Arbitrary File Upload (upgrade_contents.php) in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter versions 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000 allows an attacker to perform Missing signature validation allows uploading malicious firmware packages. The firmware upgrade endpoint in `upgrade_contents.php` accepts arbitrary file uploads without validating file headers, cryptographic signatures, or enforcing .tgz format requirements, allowing malicious firmware injection. This endpoint also subsequently provides ways for arbitrary file uploads and subsequent remote code execution
EPSS: 0.004 (29.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Dbbroadcast Mozart_dds_next_100
- Dbbroadcast Mozart_dds_next_1000
- Dbbroadcast Mozart_dds_next_1000_firmware
- Dbbroadcast Mozart_dds_next_100_firmware
- Dbbroadcast Mozart_dds_next_2000
- Dbbroadcast Mozart_dds_next_2000_firmware
- Dbbroadcast Mozart_dds_next_30
- Dbbroadcast Mozart_dds_next_300
- Dbbroadcast Mozart_dds_next_3000
- Dbbroadcast Mozart_dds_next_3000_firmware
Weakness classification (CWE)
References
- b7efe717-a805-47cf-8e9a-921fca0ce0ce (Exploit, technical-description, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2025-66255?
- CVE-2025-66255 is a critical-severity vulnerability in Dbbroadcast Mozart Dds Next 100, classified under Insufficient Verification of Data Authenticity. CVSS score: 9.8/10. Published 2025-11-26.
- How severe is CVE-2025-66255?
- Critical severity. CVSS v3 base score is 9.8 out of 10.