Is CVE-2024-57256 actively exploited?

CVE-2024-57256 has no public evidence of in-the-wild exploitation as of 2025-11-03.

What is the CVSS score for CVE-2024-57256?

CVE-2024-57256 has a CVSS score of 7.1 (HIGH severity). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

How do I patch CVE-2024-57256?

Patch guidance is available from denx security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2024-57256.

Fix CVE-2024-57256 - HIGH denx u-boot

Description

An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.

CVSS Metrics

Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector: physical
Complexity: high
Privileges: none
User Action: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-190 · Integer Overflow

Metadata

Primary Vendor: DENX
Published: 2/18/2025
Last Modified: 11/3/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

denx : u-boot

Remediation Guidance

Executive Summary

Cite this page

CVE-2024-57256. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2024-57256

View on NIST NVD

CVE-2024-57256 vulnerability