Is CVE-2018-18439 actively exploited?

CVE-2018-18439 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2018-18439?

CVE-2018-18439 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-18439?

Patch guidance is available from denx security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-18439.

Which products are affected by CVE-2018-18439?

2 products: denx u-boot, denx u-boot.

Fix CVE-2018-18439 - CRITICAL denx u-boot

Description

DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: DENX
Published: 11/20/2018
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-boot

Remediation Guidance

Executive Summary

Cite this page

CVE-2018-18439. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2018-18439

View on NIST NVD

CVE-2018-18439 vulnerability