CVE-2018-3968: Denx U-Boot

High severity, CVSS 7.0. EPSS: 0.3% chance of exploitation in the next 30 days.

An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel, embedded in a legacy image format. To trigger this vulnerability, a local attacker needs to be able to supply the image to boot.

Affected products

• Denx U-Boot: from 2013.07, up to and including 2014.07; version 2013.07 only; version 2014.07 only

Published 2019-03-21. Last modified 2026-06-17.