CVE-2026-25202: MagicINFO's Open Secret: A Deep Dive into CVE-2026-25202

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MagicINFO's Open Secret: A Deep Dive into CVE-2026-25202

Vulnerability ID: CVE-2026-25202
CVSS Score: 9.8
Published: 2026-02-02

In the world of enterprise digital signage, Samsung's MagicINFO is the kingmaker, controlling content on millions of screens worldwide. However, CVE-2026-25202 reveals a fundamental security sin: hardcoded database credentials baked directly into the MagicINFO 9 Server. This critical vulnerability (CVSS 9.8) grants unauthenticated remote attackers full administrative access to the backend database, effectively handing over the keys to the kingdom. This report dissects the flaw, the architectural laziness behind it, and the catastrophic impact of leaving your database keys under the doormat.

TL;DR

Samsung MagicINFO 9 Server contained hardcoded database credentials (username/password) accessible to anyone with the binary. This allows remote attackers to connect directly to the backend database, granting full control over digital signage content and potential RCE. Patch immediately to version 21.1090.1.

Technical Details

CVE ID: CVE-2026-25202
CVSS v3.1: 9.8 (Critical)
CWE: CWE-798 (Use of Hard-coded Credentials)
Attack Vector: Network
Privileges Required: None
Vendor ID: SVE-2025-50085

Affected Systems

Samsung MagicINFO 9 Server (All versions < 21.1090.1)
MagicINFO 9 Server: < 21.1090.1 (Fixed in: 21.1090.1)

Mitigation Strategies

Vendor Patching
Network Segmentation
Secret Rotation
Access Control Lists (ACLs)

Remediation Steps:

Download the SVE-2025-50085 / CVE-2026-25202 patch from the Samsung Partner Portal.
Backup the existing MagicINFO database and configuration files.
Run the installer to update the MagicINFO Server to version 21.1090.1 or later.
Manually connect to the backend database (PostgreSQL/MSSQL) and rotate the passwords for all application users.
Verify that firewall rules block external access to ports 5432 (Postgres) or 1433 (MSSQL).