CVEvulnerability

CVE-2025-66263

8.9 HIGH Published 2025-11-26 Modified 2026-10-19 Official page ↗
Status
Analyzed
Published
2025-11-26
Last modified
2026-10-19
Assigner
b7efe717-a805-47cf-8e9a-921fca0ce0ce
CVSS 4.0 (b7efe717-a805-47cf-8e9a-921fca0ce0ce)
8.9 HIGH — 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
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-158

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.

Affected configurations

• dbbroadcast mozart next 3000 firmware • dbbroadcast mozart next 3500 firmware • dbbroadcast mozart next 50 firmware • dbbroadcast mozart next 500 firmware • dbbroadcast mozart next 6000 firmware • dbbroadcast mozart next 7000 firmware • dbbroadcast mozart next 100 firmware • dbbroadcast mozart next 1000 firmware • dbbroadcast mozart next 2000 firmware • dbbroadcast mozart next 30 firmware • dbbroadcast mozart next 300 firmware • dbbroadcast mozart dds next 30 firmware • dbbroadcast mozart dds next 50 firmware • dbbroadcast mozart dds next 100 firmware • dbbroadcast mozart dds next 300 firmware • dbbroadcast mozart dds next 500 firmware • dbbroadcast mozart dds next 1000 firmware • dbbroadcast mozart dds next 2000 firmware • dbbroadcast mozart dds next 3000 firmware • dbbroadcast mozart dds next 3500 firmware • dbbroadcast mozart dds next 6000 firmware • dbbroadcast mozart dds next 7000 firmware

Related

Weakness · CWE (1)

  • CWE-158 Improper Neutralization of Null Byte or NUL Character weakness

References