CVE-2025-36755: CleverDisplay BlueOne unauthorized BIOS access through physical USB keyboard

Severity: low (CVSS 2.4 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-12 · updated 2026-10-07
Weakness: CWE-1191

Description

The CleverDisplay BlueOne hardware player is designed with its USB interfaces physically enclosed and inaccessible under normal operating conditions. Researchers demonstrated that, after cicumventing the device’s protective enclosure, it was possible to connect a USB keyboard and press ESC during boot to access the BIOS setup interface. BIOS settings could be viewed but not modified. This behavior slightly increases the attack surface by exposing internal system information (CWE-1244) once the enclosure is removed, but does not allow integrity or availability compromise under standard or tested configurations.

Affected products

CleverDisplay B.V. BlueOne (CleverDisplay Hardware Player): 12.11.1 — fixed in 12.12.1

How to fix

Upgrade to a fixed version: CleverDisplay B.V. BlueOne (CleverDisplay Hardware Player) 12.12.1. Check the vendor advisory for mitigations.

References

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