Is CVE-2018-3968 actively exploited?

CVE-2018-3968 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2018-3968?

CVE-2018-3968 has a CVSS score of 7 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-3968?

Patch guidance is available from denx security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-3968.

Fix CVE-2018-3968 - HIGH denx u-boot

Q: Which products are affected by CVE-2018-3968?

6 products: denx u-boot, denx u-boot, denx u-boot, denx u-boot, denx u-boot, and 1 more.

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: high
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-347

Metadata

Primary Vendor: DENX
Published: 3/21/2019
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

denx : u-bootdenx : u-bootdenx : u-bootdenx : u-bootdenx : u-bootdenx : u-boot

Remediation Guidance

Executive Summary

Cite this page

CVE-2018-3968. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2018-3968

View on NIST NVD

CVE-2018-3968 vulnerability