CVE-2025-66262 Arbitrary File Overwrite via Tar Extraction Path Traversal
Attackers can overwrite arbitrary system files via path traversal in tar extraction, leading to full system compromise on Mozart FM Transmitters.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-66262?
CVE-2025-66262 is a critical path traversal vulnerability in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Arbitrary File Overwrite via Tar Extraction Path Traversal 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 Tar extraction with -C / allow arbitrary file overwrite via crafted archive. The `restore_mozzi_memories.sh` script extracts user-controlled tar archives with `-C /` flag, depositing contents to the filesystem root without path validation. When combined with the unauthenticated file upload vulnerabilities (CVE-01, CVE-06, CVE-07), attackers can craft malicious .tgz archives containing path-traversed filenames (e.g., `etc/shadow`, `var/www/index.php`) to overwrite critical system files in writable directories, achieving full system compromise.
Weakness: CWE-22
Which versions are affected by CVE-2025-66262?
It affects 22 products.
Products include 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 and 16 more.
How do I fix CVE-2025-66262?
No fix has been published for CVE-2025-66262 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-66262 being exploited?
There is no known exploitation of CVE-2025-66262 in the wild and no public exploit code.
Other vulnerabilities in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter
- CVE-2025-66253 Unauthenticated OS Command Injection (start_upgrade.php)
- CVE-2025-66255 Unauthenticated Arbitrary File Upload (upgrade_contents.php)
- CVE-2025-66256 Unauthenticated Arbitrary File Upload (patch_contents.php)
- CVE-2025-66261 Unauthenticated OS Command Injection (restore_settings.php)
- CVE-2025-63228 File upload in n/a
Sources
Also known as GHSA-qffr-32xx-42rc.