Unauthenticated Arbitrary File Read via Null Byte Injection
Priority LOW 39CWE-158Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Unauthenticated Arbitrary File Read via Null Byte Injection 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 Null byte injection in download_setting.php allows reading arbitrary files. The `/var/tdf/download_setting.php` endpoint constructs file paths by concatenating user-controlled `$_GET['filename']` with a forced `.tgz` extension. Running on PHP 5.3.2 (pre-5.3.4), the application is vulnerable to null byte injection (%00), allowing attackers to bypass the extension restriction and traverse paths. By requesting `filename=../../../../etc/passwd%00`, the underlying C functions treat the null byte as a string terminator, ignoring the appended `.tgz` and enabling unauthenticated arbitrary file disclosure of any file readable by the web server user.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00421 36th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| DB Electronica Telecomunicazioni S.p.A. | Mozart FM Transmitter | 30; 50; 100; 300; 500; 1000; 2000; 3000; 3500; 6000; 7000 | — | No fix listed | CNA |
- Mozart FM Transmitter VendorDB Electronica Telecomunicazioni S.p.A. Affected 30; 50; 100; 300; 500; 1000; 2000; 3000; 3500; 6000; 7000 Fixed in — No fix listed CNA
CPE configurations NVD · 44
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dbbroadcast:mozart_next_3000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_3000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_3500_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_3500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_50_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_50:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_500_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_6000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_6000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
- cpe:2.3:o:dbbroadcast:mozart_next_3000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_3000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_3500_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_3500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_50_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_50:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_500_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_6000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_6000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
Show 34 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dbbroadcast:mozart_next_7000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_100_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_1000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_1000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_2000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_2000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_30_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_30:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_next_300_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_next_300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_30_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_30:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_50_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_50:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_100_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_300_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_500_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_1000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_1000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_2000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_2000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_3000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_3000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_3500_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_3500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_6000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_6000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:o:dbbroadcast:mozart_dds_next_7000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | DB Electronica Telecomunicazioni S.p.A. |
| cpe:2.3:h:dbbroadcast:mozart_dds_next_7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | DB Electronica Telecomunicazioni S.p.A. |
- cpe:2.3:o:dbbroadcast:mozart_next_7000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_100_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_1000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_1000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_2000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_2000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_30_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_30:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_next_300_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_next_300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_30_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_30:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_50_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_50:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_100_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_300_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_500_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_1000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_1000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_2000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_2000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_3000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_3000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_3500_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_3500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_6000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_6000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:o:dbbroadcast:mozart_dds_next_7000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·DB Electronica Telecomunicazioni S.p.A.
- cpe:2.3:h:dbbroadcast:mozart_dds_next_7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·DB Electronica Telecomunicazioni S.p.A.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-66263
- 2026-10-03 Alias added: GHSA-935j-38v5-5gwh
References
More DB Electronica Telecomunicazioni S.p.A. Mozart Dds Next 1000 Firmware vulnerabilities
- TI-2025-40743 OS command injection in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter CVSS 4.0CRITICAL 9.9
- TI-2025-40738 Unrestricted file upload in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter CVSS 4.0CRITICAL 9.9
- TI-2025-40737 Insufficient verification of data authenticity in DB Electronica Telecomunicazioni S.p.A… CVSS 4.0CRITICAL 9.9
- TI-2025-40735 OS command injection in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter CVSS 4.0CRITICAL 9.9
- TI-2025-40739 Unauthenticated Arbitrary File Deletion (patch_contents.php) CVSS 4.0CRITICAL 9.2
- TI-2025-40734 Infinite loop in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter CVSS 4.0HIGH 8.4
Sources
- CVE-2025-66263 · CVE Program
- CVE-2025-66263 · NVD
- FIRST EPSS
- GHSA-935j-38v5-5gwh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences