How severe is CVE-2025-66251?

CVE-2025-66251 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2025-66251 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66251?

CVE-2025-66251 primarily affects Dbbroadcast Mozart Next 100 Firmware. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-66251?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-66251 have an EU (EUVD) identifier?

Yes. CVE-2025-66251 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199681.

When was CVE-2025-66251 published?

CVE-2025-66251 was published on 2025-11-26 and last updated on 2026-06-17.

CVE-2025-66251

CVE-2025-66251 is a critical-severity vulnerability in Dbbroadcast Mozart Next 100 Firmware with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v4: 7.7
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-199681
Weakness: CWE-22
Affected product: Dbbroadcast Mozart Next 100 Firmware
Published: 2025-11-26
Last modified: 2026-06-17

Description

Unauthenticated Path Traversal with Arbitrary File Deletion 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 deletehidden parameter allows path traversal deletion of arbitrary .tgz files.

Frequently asked questions

What is CVE-2025-66251?: Unauthenticated Path Traversal with Arbitrary File Deletion 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 deletehidden parameter allows path traversal deletion of arbitrary .tgz files.
How severe is CVE-2025-66251?: CVE-2025-66251 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2025-66251 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66251?: CVE-2025-66251 primarily affects Dbbroadcast Mozart Next 100 Firmware. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-66251?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-66251 have an EU (EUVD) identifier?: Yes. CVE-2025-66251 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199681.
When was CVE-2025-66251 published?: CVE-2025-66251 was published on 2025-11-26 and last updated on 2026-06-17.

References

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

Affected products (22)

cpe:2.3:o:dbbroadcast:mozart_next_100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_1000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_2000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_30_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_3000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_3500_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_50_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_500_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_6000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_next_7000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_30_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_50_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_300_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_500_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_1000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_2000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_3000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_3500_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_6000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:dbbroadcast:mozart_dds_next_7000_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Dbbroadcast Mozart Next 100 Firmware

CVE-2025-66262 — Critical (CVSS 9.8): Arbitrary File Overwrite via Tar Extraction Path Traversal in DB Electronica Telecomunicazioni S.p.A. Mozart FM…
CVE-2025-66261 — Critical (CVSS 9.8): Unauthenticated OS Command Injection (restore_settings.php) in DB Electronica Telecomunicazioni S.p.A. Mozart FM…
CVE-2025-66259 — Critical (CVSS 9.8): Authenticated Root Remote Code Execution via improrer user input filtering in DB Electronica Telecomunicazioni S.p.A.…
CVE-2025-66256 — Critical (CVSS 9.8): Unauthenticated Arbitrary File Upload (patch_contents.php) in DB Electronica Telecomunicazioni S.p.A. Mozart FM…
CVE-2025-66255 — Critical (CVSS 9.8): Unauthenticated Arbitrary File Upload (upgrade_contents.php) in DB Electronica Telecomunicazioni S.p.A. Mozart FM…
CVE-2025-66253 — Critical (CVSS 9.8): Unauthenticated OS Command Injection (start_upgrade.php) in DB Electronica Telecomunicazioni S.p.A. Mozart FM…

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