CVE-2025-66255
CRITICAL EPSS 24.9%
Published Nov 26, 20257mo ago · Modified Jun 17, 20261w ago
9.9 CVSS 4.0
Published Nov 26, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago
Description
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
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
24.9% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 2
CWE-345
CWE-434 Unrestricted Upload of File with Dangerous Type Resource Mgmt
Affected Products 44
| Vendor | Product | Version | Range |
|---|---|---|---|
| dbbroadcast | mozart_next_3000_firmware | * | any |
| dbbroadcast | mozart_next_3000 | * | any |
| dbbroadcast | mozart_next_3500_firmware | * | any |
| dbbroadcast | mozart_next_3500 | * | any |
| dbbroadcast | mozart_next_50_firmware | * | any |
| dbbroadcast | mozart_next_50 | * | any |
| dbbroadcast | mozart_next_500_firmware | * | any |
| dbbroadcast | mozart_next_500 | * | any |
| dbbroadcast | mozart_next_6000_firmware | * | any |
| dbbroadcast | mozart_next_6000 | * | any |
| dbbroadcast | mozart_next_7000_firmware | * | any |
| dbbroadcast | mozart_next_7000 | * | any |
| dbbroadcast | mozart_next_100_firmware | * | any |
| dbbroadcast | mozart_next_100 | * | any |
| dbbroadcast | mozart_next_1000_firmware | * | any |
| dbbroadcast | mozart_next_1000 | * | any |
| dbbroadcast | mozart_next_2000_firmware | * | any |
| dbbroadcast | mozart_next_2000 | * | any |
| dbbroadcast | mozart_next_30_firmware | * | any |
| dbbroadcast | mozart_next_30 | * | any |
| dbbroadcast | mozart_next_300_firmware | * | any |
| dbbroadcast | mozart_next_300 | * | any |
| dbbroadcast | mozart_dds_next_30_firmware | * | any |
| dbbroadcast | mozart_dds_next_30 | * | any |
| dbbroadcast | mozart_dds_next_50_firmware | * | any |
| dbbroadcast | mozart_dds_next_50 | * | any |
| dbbroadcast | mozart_dds_next_100_firmware | * | any |
| dbbroadcast | mozart_dds_next_100 | * | any |
| dbbroadcast | mozart_dds_next_300_firmware | * | any |
| dbbroadcast | mozart_dds_next_300 | * | any |
| dbbroadcast | mozart_dds_next_500_firmware | * | any |
| dbbroadcast | mozart_dds_next_500 | * | any |
| dbbroadcast | mozart_dds_next_1000_firmware | * | any |
| dbbroadcast | mozart_dds_next_1000 | * | any |
| dbbroadcast | mozart_dds_next_2000_firmware | * | any |
| dbbroadcast | mozart_dds_next_2000 | * | any |
| dbbroadcast | mozart_dds_next_3000_firmware | * | any |
| dbbroadcast | mozart_dds_next_3000 | * | any |
| dbbroadcast | mozart_dds_next_3500_firmware | * | any |
| dbbroadcast | mozart_dds_next_3500 | * | any |
| dbbroadcast | mozart_dds_next_6000_firmware | * | any |
| dbbroadcast | mozart_dds_next_6000 | * | any |
| dbbroadcast | mozart_dds_next_7000_firmware | * | any |
| dbbroadcast | mozart_dds_next_7000 | * | any |
References 1
- abdulmhsblog.com https://www.abdulmhsblog.com/posts/webfmvulns/
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.