{"cve":"CVE-2025-66253","nvd":{"published":"2025-11-26T01:16:08.433","modified":"2026-10-18T20:10:00.110","status":"Analyzed","description":"Unauthenticated OS Command Injection (start_upgrade.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 User input passed directly to exec() allows remote code execution via start_upgrade.php. The `/var/tdf/start_upgrade.php` endpoint passes user-controlled `$_GET[\"filename\"]` directly into `exec()` without sanitization or shell escaping. Attackers can inject arbitrary shell commands using metacharacters (`;`, `|`, etc.) to achieve remote code execution as the web server user (likely root).","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","score":9.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-78"],"references":["https://www.abdulmhsblog.com/posts/webfmvulns/","https://www.abdulmhsblog.com/posts/webfmvulns/"],"products":["dbbroadcast:mozart_dds_next_1000_firmware","dbbroadcast:mozart_dds_next_100_firmware","dbbroadcast:mozart_dds_next_2000_firmware","dbbroadcast:mozart_dds_next_3000_firmware","dbbroadcast:mozart_dds_next_300_firmware","dbbroadcast:mozart_dds_next_30_firmware","dbbroadcast:mozart_dds_next_3500_firmware","dbbroadcast:mozart_dds_next_500_firmware","dbbroadcast:mozart_dds_next_50_firmware","dbbroadcast:mozart_dds_next_6000_firmware","dbbroadcast:mozart_dds_next_7000_firmware","dbbroadcast:mozart_next_1000_firmware","dbbroadcast:mozart_next_100_firmware","dbbroadcast:mozart_next_2000_firmware","dbbroadcast:mozart_next_3000_firmware","dbbroadcast:mozart_next_300_firmware","dbbroadcast:mozart_next_30_firmware","dbbroadcast:mozart_next_3500_firmware","dbbroadcast:mozart_next_500_firmware","dbbroadcast:mozart_next_50_firmware","dbbroadcast:mozart_next_6000_firmware","dbbroadcast:mozart_next_7000_firmware"],"source":"nvd","synced_at":"2026-10-19T22:16:02.354564667+00:00"},"epss":{"cve":"CVE-2025-66253","score":0.02302,"percentile":0.83192,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}