CVE-2025-36755

CleverDisplay BlueOne unauthorized BIOS access through physical USB keyboard

Published Dec 12, 2025 CVSS 4.0 · 2.4 Low EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

BlueOne firmware version 12.2.1 introduces default BIOS password protection and Secure Boot enablement, preventing unauthorized BIOS access.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Cleverdisplay
Cleverdisplay blueone
Vendors & Products Cleverdisplay
Cleverdisplay blueone
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title CleverDisplay BlueOne unauthorized BIOS access through physical USB keyboard
Weaknesses CWE-1191
CWE-1244
References
Metrics cvssV4_0

{'score': 2.4, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/V:D/RE:L/U:Green'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
DIVD
Published
Updated
Dec 13, 2025, 8:16 AM
Reserved
Apr 15, 2025, 9:54 PM
Status
Deferred
Published
Dec 12, 2025, 3:15 PM
Modified
Oct 7, 2026, 8:10 PM