CVE-2018-4296

Name: CVE-2018-4296
Creator: NVD / NIST
Published: 2020-10-27T20:15:13.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2018-4296 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. This issue is fixed in macOS Mojave 10.14. A permissions issue existed in DiskArbitration. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

This issue is fixed in macOS Mojave 10.14. A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.02%

59.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	10.14

References

https://support.apple.com/en-us/HT209139Vendor Advisory
https://support.apple.com/en-us/HT209139Vendor Advisory

Timeline

Published: Oct 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4296?

This issue is fixed in macOS Mojave 10.14. A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks.

How severe is CVE-2018-4296?

CVE-2018-4296 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4296?

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-2018-4296?

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

Scan your code now

Source: NVD / NIST