CVE-2025-54439
Published: 23 July 2025
Summary
CVE-2025-54439 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Samsung Magicinfo 9 Server. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 37.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly addresses the CVE by requiring identification, reporting, and correction of the unrestricted file upload flaw via timely patching.
Prevents exploitation by validating uploaded file types and contents to block dangerous files that enable code injection.
Mitigates the vulnerability by restricting classes of information inputs, such as limiting file upload types to safe ones only.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unrestricted file upload (CWE-434) in a network-accessible server application directly enables remote code execution via web shell deployment and exploitation of a public-facing app.
NVD Description
Unrestricted Upload of File with Dangerous Type vulnerability in Samsung Electronics MagicINFO 9 Server allows Code Injection.This issue affects MagicINFO 9 Server: less than 21.1080.0.
Deeper analysisAI
CVE-2025-54439 is an Unrestricted Upload of File with Dangerous Type vulnerability (CWE-434) in Samsung Electronics MagicINFO 9 Server that enables code injection. The issue affects MagicINFO 9 Server versions less than 21.1080.0 and carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant impact on confidentiality, integrity, and availability.
An attacker with low-privilege access (PR:L) can exploit this vulnerability over the network (AV:N) with low complexity (AC:L) and without requiring user interaction (UI:N). By uploading files of dangerous types, the attacker can inject and execute arbitrary code on the server, potentially leading to full compromise including data exfiltration, modification of system files, or denial of service.
Samsung provides security updates and mitigation guidance on their security portal at https://security.samsungtv.com/securityUpdates. Practitioners should consult this advisory for patch details and apply updates to affected MagicINFO 9 Server instances immediately.
Details
- CWE(s)