Is CVE-2017-3226 actively exploited?

No active exploitation of CVE-2017-3226 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-3226 be exploited remotely?

No. CVE-2017-3226 requires physical access to exploit.

What is the CVSS score of CVE-2017-3226?

CVE-2017-3226 has a CVSS score of 6.4 (MEDIUM).

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MEDIUM

CVE-2017-3226

CWE-329Published: July 24, 2018· Updated: Jun 17, 2026

6.4

CVSS v3.1

Official Description

Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. Devices that make use of Das U-Boot's AES-CBC encryption feature using environment encryption (i.e., setting the configuration parameter CONFIG_ENV_AES=y) read environment variables from disk as the encrypted disk image is processed. An attacker with physical access to the device can manipulate the encrypted environment data to include a crafted two-byte sequence which triggers an error in environment variable parsing. This error condition is improperly handled by Das U-Boot, resulting in an immediate process termination with a debugging message.

NVD Source

Technical Analysis

CVE-2017-3226 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.4.