CVE-2025-66262: critical vulnerability in DB Electronica Telecomunicazioni S.p.A.
Arbitrary File Overwrite via Tar Extraction Path Traversal
Published
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48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 1.5%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/AU:N
Affected products
DB Electronica Telecomunicazioni S.p.A. · Mozart FM Transmitterpublic PoCs found — 1
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Related CVEs — DB Electronica Telecomunicazioni S.p.A.
In the same product, most dangerous first.
CVE-2025-66261CRITICALUnauthenticated OS Command Injection (restore_settings.php)EPSS 2.3%CVE-2025-66253CRITICALUnauthenticated OS Command Injection (start_upgrade.php)EPSS 2.3%CVE-2025-66259CRITICALAuthenticated Root Remote Code Execution through improper filtering of HTTP post request parametersEPSS 0.7%CVE-2025-66251HIGHUnauthenticated Path Traversal with Arbitrary File DeletionEPSS 0.5%CVE-2025-66256CRITICALUnauthenticated Arbitrary File Upload (patch_contents.php)EPSS 0.5%CVE-2025-66250CRITICALUnauthenticated Arbitrary File Upload (status_contents.php)EPSS 0.5%