Samsung MagicINFO 9 Server PremiumClientService Hard-coded Cryptographic Key Authentication Bypass Vulnerability

July 28th, 2025
ZDI-25-670 ZDI-CAN-25839

CVE ID

CVE-2025-54454

CVSS Score

9.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Vendors

Samsung

Affected Products

MagicINFO 9 Server

Vulnerability Details

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

The specific flaw exists within the PremiumClientService class. The issue results from a hard-coded cryptographic key. An attacker can leverage this vulnerability to bypass authentication on the system.

Additional Details

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

Disclosure Timeline

  • 2025-03-25 - Vulnerability reported to vendor
  • 2025-07-28 - Coordinated public release of advisory
  • 2025-07-28 - Advisory Updated

Credit

06fe5fd2bc53027c4a3b7e395af0b850e7b8a044

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