PAX A920 device allows to downgrade bootloader due to a bug in its version check. The signature is correctly checked and only bootloader signed by PAX can be used. 




The attacker must have physical USB access to the device in order to exploit this vulnerability.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-54661 PAX A920 device allows to downgrade bootloader due to a bug in its version check. The signature is correctly checked and only bootloader signed by PAX can be used.  The attacker must have physical USB access to the device in order to exploit this vulnerability.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 17 Jun 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 10 Oct 2024 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Thu, 10 Oct 2024 15:45:00 +0000

Type Values Removed Values Added
Description PAX A920 device allows to downgrade bootloader due to a bug in its version check. The signature is correctly checked and only bootloader signed by PAX can be used.  The attacker must have physical USB access to the device in order to exploit this vulnerability. PAX A920 device allows to downgrade bootloader due to a bug in its version check. The signature is correctly checked and only bootloader signed by PAX can be used.  The attacker must have physical USB access to the device in order to exploit this vulnerability.

cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2025-06-17T13:36:53.048Z

Reserved: 2023-09-07T13:18:09.776Z

Link: CVE-2023-4818

cve-icon Vulnrichment

Updated: 2024-08-02T07:38:00.703Z

cve-icon NVD

Status : Modified

Published: 2024-01-15T14:15:25.180

Modified: 2025-06-17T14:15:27.577

Link: CVE-2023-4818

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.