CVE-2025-34503
highpriority · track · 0EPSS 0.001 · 3 %ileEUEPSS · scored 2026-10-26
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4–7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-34503cnnvd
- https://www.ioactive.com/wp-content/uploads/2025/05/IOActive-card-shuffler-security.pdfcnnvd
- https://www.vulncheck.com/advisories/shuffle-master-deck-mate-1-unauthenticated-eeprom-firmware-executioncnnvd
- https://www.ioactive.com/wp-content/uploads/2025/05/IOActive-card-shuffler-security.pdfenisa_euvd
- https://www.vulncheck.com/advisories/shuffle-master-deck-mate-1-unauthenticated-eeprom-firmware-executionenisa_euvd
- https://www.ioactive.com/wp-content/uploads/2025/05/IOActive-card-shuffler-security.pdfnvd
- https://www.vulncheck.com/advisories/shuffle-master-deck-mate-1-unauthenticated-eeprom-firmware-executionnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan