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CVE-2025-66255

Published: Nov 26, 2025Updated: Dec 3, 2025 Sources: CVE List NVDCWE-345
9.8CRITICAL
NVD MITRE
EPSS Score
0.4%
Top 68.8%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available
Self-Check
Not available

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

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-345CWE-434

Affected Products

dbbroadcast
commercialaka mozart dds
mozart next 3000 firmware
ICS / OT / IoT
mozart next 3500 firmware
ICS / OT / IoT
mozart next 50 firmware
ICS / OT / IoT
mozart next 500 firmware
ICS / OT / IoT
mozart next 6000 firmware
ICS / OT / IoT
mozart next 7000 firmware
ICS / OT / IoT
mozart next 100 firmware
ICS / OT / IoT
mozart next 1000 firmware
ICS / OT / IoT
DB Electronica Telecomunicazioni S.p.A.
commercial·IT
Mozart FM TransmitterOn-prem
ICS / OT / IoT
and 14 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

4 techniques
Collection
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

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

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