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

CVE-2024-57256 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of U Boot are affected by CVE-2024-57256?

Organizations using ext4fs_read_symlink in Das U-Boot face moderate risk from CVE-2024-57256, a integer overflow vulnerability rated CVSS 7.1.. A patch is available.

How to fix or mitigate CVE-2024-57256?

Within 7 days: Identify all affected systems running ext4fs_read_symlink in Das U-Boot and apply vendor patches promptly. Vendor patch is available.

U Boot CVE-2024-57256

HIGH

Integer Overflow or Wraparound (CWE-190)

2025-02-18 cve@mitre.org

Buffer Overflow Integer Overflow U Boot Denx

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

SUSE

HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:27 vuln.today

Patch released

Mar 28, 2026 - 18:27 nvd

Patch available

CVE Published

Feb 18, 2025 - 23:15 nvd

HIGH 7.1

DescriptionCVE.org

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.

AnalysisAI

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,. Rated high severity (CVSS 7.1), this vulnerability is no authentication required.

Technical ContextAI

This vulnerability is classified as Integer Overflow (CWE-190), which allows attackers to cause unexpected behavior through arithmetic overflow. 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. Affected products include: Denx U-Boot. Version information: before 2025.01.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate arithmetic operations, use safe integer libraries, check bounds before allocation.

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