CVE-2025-66262

Nov. 26, 2025, 1:16 a.m.

9.3
Critical

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.

Product(s) Impacted

Vendor Product Versions
Db Electronica Telecomunicazioni
  • Mozart Fm Transmitter
  • 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a db_electronica_telecomunicazioni mozart_fm_transmitter 30 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 50 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 100 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 300 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 500 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 1000 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 2000 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 3000 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 3500 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 6000 / / / / / / /
a db_electronica_telecomunicazioni mozart_fm_transmitter 7000 / / / / / / /

References

https://www.abdulmhsblog.com/posts/webfmvulns/

Tags

CWE-22
b7efe717-a805-47cf-8e9a-921fca0ce0ce
2025-11-26
CVE-2025-66262

CVSS Score

9.3 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: NONE
  • Privileges Required: NONE
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: LOW
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: Nov. 26, 2025, 1:16 a.m.
Last Modified: Nov. 26, 2025, 1:16 a.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

b7efe717-a805-47cf-8e9a-921fca0ce0ce

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.