CVE-2025-66255: Dbbroadcast Mozart Dds Next 1000 Firmware

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

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

Affected products

• Dbbroadcast Mozart Dds Next 1000 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 100 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 2000 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 3000 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 300 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 30 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 3500 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 500 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 50 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 6000 Firmware: affected versions not specified
• Dbbroadcast Mozart Dds Next 7000 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 1000 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 100 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 2000 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 3000 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 300 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 30 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 3500 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 500 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 50 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 6000 Firmware: affected versions not specified
• Dbbroadcast Mozart Next 7000 Firmware: affected versions not specified

Published 2025-11-26. Last modified 2026-06-17.