CVE-2025-66255

criticalpriority · track · 39OT risk · elevatedEPSS 0.004 · 35 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.41% (35th) EPSS

CVSS 9.8 · critical

Is it mine?

33 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

9.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.8–9.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v4.09.9criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:N/SA:Nsecondary · ENISA EU

v4.09.9criticalCVSS: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:Xsecondary

v4.08.8highCVSS: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:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-434USprimaryCWE-345US

affected products (33)

Products and version ranges known to be affected.

DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 30enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 300enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 2000enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 7000enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 3500enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 1000enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 50enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 500enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 3000enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 6000enisa_euvdEU
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter≤ 100enisa_euvdEU
dbbroadcast mozart dds next 100 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_100_firmware:*:*:*:*:*:*:*:*
dbbroadcast mozart dds next 1000 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_1000_firmware:*:*:*:*:*:*:*:*
dbbroadcast mozart dds next 2000 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_2000_firmware:*:*:*:*:*:*:*:*
dbbroadcast mozart dds next 30 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_30_firmware:*:*:*:*:*:*:*:*
dbbroadcast mozart dds next 300 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_300_firmware:*:*:*:*:*:*:*:*
dbbroadcast mozart dds next 3000 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_3000_firmware:*:*:*:*:*:*:*:*
dbbroadcast mozart dds next 3500 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_3500_firmware:*:*:*:*:*:*:*:*
dbbroadcast mozart dds next 50 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_50_firmware:*:*:*:*:*:*:*:*
dbbroadcast mozart dds next 500 firmwareall versionsnvdUScpe:2.3:o:dbbroadcast:mozart_dds_next_500_firmware:*:*:*:*:*:*:*:*

showing 20 of 33

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2025-11-26modified 2026-10-18

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+5024 more

references (4)

External citations — patches, advisories, analysis.

scry

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