CVE-2025-66255

Nov. 26, 2025, 1:16 a.m.

9.9
Critical

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

Product(s) Impacted

Vendor Product Versions
Db Electronica Telecomunicazioni
  • Mozart Fm Transmitter
  • 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-345
Insufficient Verification of Data Authenticity
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a db_electronica_telecomunicazioni mozart_fm_transmitter 30 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 50 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 100 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 300 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 500 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 1000 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 2000 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 3000 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 3500 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 6000 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 7000 / / / / / / /

References

https://www.abdulmhsblog.com/posts/webfmvulns/

Tags

CWE-345
b7efe717-a805-47cf-8e9a-921fca0ce0ce
2025-11-26
CVE-2025-66255

CVSS Score

9.9 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: NONE
  • Privileges Required: NONE
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: NONE
  • Exploit Maturity: NOT_DEFINED

    • 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

    View Vector String

Timeline

Published: Nov. 26, 2025, 1:16 a.m.
Last Modified: Nov. 26, 2025, 1:16 a.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

b7efe717-a805-47cf-8e9a-921fca0ce0ce

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.