CVE-2025-66262
critical
Arbitrary File Overwrite via Tar Extraction Path Traversal in DB Electronica Telecomunicazioni S.p.A.
Vendor / product: Dbbroadcast — mozart next 100 firmware
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
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2025-11-26 01:16
Modified: 2026-10-18 20:10
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
dbbroadcast / mozart_next_100_firmware all versions
dbbroadcast / mozart_next_1000_firmware all versions
dbbroadcast / mozart_next_2000_firmware all versions
dbbroadcast / mozart_next_30_firmware all versions
dbbroadcast / mozart_next_300_firmware all versions
dbbroadcast / mozart_next_3000_firmware all versions
dbbroadcast / mozart_next_3500_firmware all versions
dbbroadcast / mozart_next_50_firmware all versions
dbbroadcast / mozart_next_500_firmware all versions
dbbroadcast / mozart_next_6000_firmware all versions
dbbroadcast / mozart_next_7000_firmware all versions
dbbroadcast / mozart_dds_next_30_firmware all versions
dbbroadcast / mozart_dds_next_50_firmware all versions
dbbroadcast / mozart_dds_next_100_firmware all versions
dbbroadcast / mozart_dds_next_300_firmware all versions
dbbroadcast / mozart_dds_next_500_firmware all versions
dbbroadcast / mozart_dds_next_1000_firmware all versions
dbbroadcast / mozart_dds_next_2000_firmware all versions
dbbroadcast / mozart_dds_next_3000_firmware all versions
dbbroadcast / mozart_dds_next_3500_firmware all versions
dbbroadcast / mozart_dds_next_6000_firmware all versions
dbbroadcast / mozart_dds_next_7000_firmware all versions
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC ·
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