PT-2025-48116 · Db Elettronica Telecomunicazioni Spa · Mozart Fm Transmitter

Abdul Mhanni · Published 2025-11-26 · Updated 2025-12-24 · CVE-2025-66262

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter versions 30 through 7000

Description A flaw exists that allows arbitrary file overwrites through a Tar extraction path traversal. The restore mozzi memories.sh script extracts user-controlled tar archives using the -C / flag, which deposits contents to the filesystem root without path validation. This, combined with unauthenticated file upload issues, enables attackers to create malicious archives containing path-traversed filenames (for example, etc/shadow, var/www/index.php) to overwrite critical system files in writable directories, potentially leading to full system compromise.

Recommendations versions 30 through 7000: Apply a patch to prevent the use of the -C / flag during tar extraction and implement path validation for extracted files.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2025-66262

Affected Products

Mozart Fm Transmitter

References · 6

• 🔥 https://abdulmhsblog.com/posts/webfmvulns · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-66262 · Security Note
• https://twitter.com/SecReportCVE/status/2003883030637691158 · Twitter Post
• https://t.me/CVEtracker/38253 · Telegram Post
• https://twitter.com/dailycve/status/1996310887733346575 · Twitter Post
• https://twitter.com/offseq/status/1993545685132578866 · Twitter Post