Vulnerability details
CVE-2025-34503
Light & Wonder, Inc. / SHFL Entertainment, Inc. / Shuffle Master Deck Mate 1
Shuffle Master Deck Mate 1 Unauthenticated EEPROM Firmware Execution
CVSS 4.0
7.0High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.0High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Light & Wonder, Inc. / SHFL Entertainment, Inc. / Shuffle Master, Inc. | Deck Mate 1 | All | CVEProject cvelistV5 (CNA) |
References and advisories
2- https://www.ioactive.com/wp-content/uploads/2025/05/IOActive-card-shuffler-security.pdf technical-descriptionexploit
- https://www.vulncheck.com/advisories/shuffle-master-deck-mate-1-unauthenticated-eeprom-firmware-execution third-party-advisory
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Details
- Published
- 2025-10-25
- Last updated
- 2026-07-28
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.13%
Probability of exploitation in 30 days
2.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-347Improper Verification of Cryptographic Signature
- CWE-1326Missing Immutable Root of Trust in Hardware