SRC-2025-0004 : Samsung MagicINFO 9 Server ResponseUploadActivity TOCTOU Remote Code Execution Vulnerability

CVE ID: CVE-2025-UNKNOWN

CVSS Score: 9.8, (/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Vendors: Samsung

Affected Products: MagicINFO <= 21.1080.0

Vulnerability Details:

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Samsung MagicINFO 9 Server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the ResponseUploadActivity class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.

Vendor Response:

Samsung has issued an update to correct this vulnerability. More details can be found at: https://security.samsungtv.com/securityUpdates

Disclosure Timeline:

• 2025-08-14 – Vulnerability reported to [email protected]

• 2025-08-15 – Acknowledgement of submission from the vendor

• 2026-01-28 – Coordinated public release of advisory

Proof of Concept: /pocs/src-2025-0004.py.txt

Credit: This vulnerability was discovered by Steven Seeley of Source Incite