Is CVE-2025-66254 actively exploited?

No active exploitation of CVE-2025-66254 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-66254 be exploited remotely?

Yes. CVE-2025-66254 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-66254?

CVE-2025-66254 has a CVSS score of 9.1 (CRITICAL).

HOME VULNERABILITIESCVE-2025-66254

CRITICAL

CVE-2025-66254

CWE-73Published: November 26, 2025· Updated: Jun 17, 2026

9.1

CVSS v3.1

Official Description

Unauthenticated Arbitrary File Deletion (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 The deleteupgrade parameter allows unauthenticated deletion of arbitrary files.

The `deleteupgrade` parameter in `/var/www/upgrade_contents.php` allows unauthenticated deletion of arbitrary files in `/var/www/upload/` without any extension restriction or path sanitization, enabling attackers to remove critical system files.

NVD Source

Risk Analysis

DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitters are vulnerable to unauthenticated arbitrary file deletion via the 'deleteupgrade' parameter in 'upgrade_contents.php'. This critical vulnerability, with a CVSS score of 9.1, allows an unauthenticated attacker to delete arbitrary files in the '/var/www/upload/' directory, potentially removing critical system files. The flaw is remotely exploitable.

No public exploit is known for this vulnerability. The flaw is remotely exploitable due to its network attack vector and low attack complexity.

Recommended Action

Implement strict access control and input validation for file deletion operations. Ensure that only authorized users can delete files and that file paths are properly sanitized.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-66254 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.1.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected Vendors & Products

dbbroadcast44 product(s)

mozart next 100 firmwaremozart next 100mozart next 1000 firmwaremozart next 1000mozart next 2000 firmwaremozart next 2000mozart next 30 firmwaremozart next 30mozart next 300 firmwaremozart next 300mozart next 3000 firmwaremozart next 3000+32

Source: NVD CPE · 44 total CPE entries