CVE-2025-45512
Linux Debian vulnerability analysis and mitigation

Overview

A lack of signature verification vulnerability was discovered in the bootloader of DENX Software Engineering Das U-Boot (U-Boot) version 1.1.3. The vulnerability was identified in August 2025 and assigned CVE-2025-45512. This security flaw affects the firmware verification mechanism of the bootloader, potentially impacting embedded systems and Raspberry Pi-based platforms (MITRE).

Technical details

The vulnerability is classified as CWE-77 (Improper Neutralization of Special Elements used in a Command) with a CVSS v3.1 base score of 6.5 (Medium) and vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. The flaw exists in the bootloader's firmware verification process, where the absence of proper signature validation allows for the installation of unauthorized firmware files (MITRE).

Impact

The vulnerability enables attackers to install crafted firmware files, potentially leading to arbitrary code execution on affected systems. This could result in unauthorized firmware uploads, potential persistence mechanisms, and supply chain compromise (GitHub PoC).

Additional resources


SourceThis report was generated using AI

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