CVE-2025-34503 HIGH

CVE-2025-34503: Shuffle Master Deck Mate 1 Unauthenticated EEPROM Firmware Execution

Vendor Light & Wonder, Inc. / Shfl Entertainment, Inc. / Shuffle Master, Inc.
Product Deck Mate 1
Weakness CWE-347
Published October 24, 2025
Last update October 27, 2025
View on NVD All CVEs

CVSS base score

7.0/10
Attack vector Physical
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Deck Mate 1 executes firmware directly from an external EEPROM without verifying authenticity or integrity. An attacker with physical access can replace or reflash the EEPROM to run arbitrary code that persists across reboots. Because this design predates modern secure-boot or signed-update mechanisms, affected systems should be physically protected or retired from service. The vendor has not indicated that firmware updates are available for this legacy model.

Key dates

02Disclosure timeline

October 24, 2025 CVE published
October 27, 2025 Record updated