CVE-2025-66263
Dec. 3, 2025, 4:52 p.m.
8.9
High
Description
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Dbbroadcast |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-158
Improper Neutralization of Null Byte or NUL Character
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| o | dbbroadcast | mozart_next_3000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_3000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_3500_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_3500 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_50_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_50 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_500_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_500 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_6000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_6000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_7000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_7000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_100_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_100 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_1000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_1000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_2000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_2000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_30_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_30 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_next_300_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_next_300 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_30_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_30 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_50_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_50 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_100_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_100 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_300_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_300 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_500_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_500 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_1000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_1000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_2000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_2000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_3000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_3000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_3500_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_3500 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_6000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_6000 | - | / | / | / | / | / | / | / |
| o | dbbroadcast | mozart_dds_next_7000_firmware | - | / | / | / | / | / | / | / |
| h | dbbroadcast | mozart_dds_next_7000 | - | / | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 4.0
- Attack Vector: NETWORK
- Attack Complexity: LOW
- Attack Requirements: PRESENT
- Privileges Required: NONE
- User Interaction: NONE
- Scope:
- Confidentiality Impact: HIGH
- Integrity Impact: NONE
- Availability Impact: NONE
- Exploit Maturity: NOT_DEFINED
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/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:X
Timeline
Published: Nov. 26, 2025, 1:16 a.m.
Last Modified: Dec. 3, 2025, 4:52 p.m.
Last Modified: Dec. 3, 2025, 4:52 p.m.
Status : Analyzed
CVE has had analysis completed and all data associations made.
More infoSource
b7efe717-a805-47cf-8e9a-921fca0ce0ce
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.