CVE-2023-45839

Name: CVE-2023-45839
Creator: NVD / NIST
Published: 2023-12-05T12:15:43.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2023-45839 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Multiple data integrity vulnerabilities exist in the package hash checking functionality of Buildroot 2023.08.1 and Buildroot dev commit 622698d7847. A specially crafted man-in-the-middle attack can lead to arbitrary command execution in the builder.This vulnerability is related to the `aufs-util` package.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

Multiple data integrity vulnerabilities exist in the package hash checking functionality of Buildroot 2023.08.1 and Buildroot dev commit 622698d7847. A specially crafted man-in-the-middle attack can lead to arbitrary command execution in the builder.This vulnerability is related to the `aufs-util` package.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Buildroot	Buildroot	2023.08.1

References

http://www.openwall.com/lists/oss-security/2023/12/11/1Mailing List, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1844Exploit, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/12/11/1Mailing List, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1844Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1844

Timeline

Published: Dec 5, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45839?

How severe is CVE-2023-45839?

CVE-2023-45839 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45839?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-45839?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST