CVE-2025-34503

Shuffle Master Deck Mate 1 Unauthenticated EEPROM Firmware Execution

HIGH
7
CVSS Score
Published: October 24, 2025 at 11:04 PM UTC
Updated: October 8, 2026 at 11:10 AM UTC
2 products affected across 2 vendorsEntertainment SystemDeck Mate 1

Using Deck Mate 1 by Light & Wonder, Inc. / SHFL Entertainment, Inc. / Shuffle Master, Inc.?

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Severity
HIGH7
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-347CWE-1326

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