CVE-2017-3225: Das U-Boot's AES-CBC encryption feature uses a zero (0) initialization vector that may allow attacks against the underlying cryptographic implementation and allow an attacker to decrypt the data

Security readout for executives and security teams

Some devices using Das U-Boot can store bootloader configuration in AES-encrypted form, but this CVE reports use of an all-zero initialization vector. That makes encrypted configuration more predictable and may let an attacker learn protected data through dictionary attacks. Exposure is most likely in embedded devices or firmware builds using Das U-Boot 2017.09 with the AES encrypted environment/configuration mode enabled. Devices not using this U-Boot feature are less likely to be affected based on the provided sources. Treat this as a targeted embedded-device confidentiality risk, not a broad enterprise emergency. Prioritize products or deployed devices where bootloader configuration may contain secrets, licensing data, network credentials, or security controls. Mitigation focus: Identify devices and firmware using Das U-Boot 2017.09.; Confirm whether encrypted environment/configuration storage is enabled.; Check Das U-Boot or device-vendor guidance for fixed versions or supported mitigations..

Prepared

Jun 7, 2026, 05:54 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.