CVE-2023-4818 - CVE House
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Status published Unknown CVE-2023-4818

PAX A920 device allows to downgrade bootloader due to a...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Hubert Jasudowicz, Adam Kliś and other members of STM Cyber R&D team

References

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Affected Vendor

PAX Technology

View all reports →

Affected Software

A920
Vulnerable Versions:
0

Timeline

Official Publish: January 15th, 2024
Last Modified: June 17th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

CWE-74

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1562 Impair Defenses
Defense Evasion
T1213 Data from Information Repositories
Collection