CVE-2018-4399

Name: CVE-2018-4399
Creator: NVD / NIST
Published: 2019-04-03T18:29:13.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.93%

Last modified Jun 17, 2026

CVE-2018-4399 is a vulnerability of currently unknown severity. An access issue existed with privileged API calls. This issue was addressed with additional restrictions. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

An access issue existed with privileged API calls. This issue was addressed with additional restrictions. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.

Metrics

EPSS Probability

0.93%

56.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	< 12.0
Apple	Mac Os X	< 10.14
Apple	Tvos	< 12
Apple	Watchos	< 5.0

References

https://support.apple.com/kb/HT209106Vendor Advisory
https://support.apple.com/kb/HT209107Vendor Advisory
https://support.apple.com/kb/HT209108Vendor Advisory
https://support.apple.com/kb/HT209139Vendor Advisory
https://support.apple.com/kb/HT209193Vendor Advisory
https://support.apple.com/kb/HT209106Vendor Advisory
https://support.apple.com/kb/HT209107Vendor Advisory
https://support.apple.com/kb/HT209108Vendor Advisory
https://support.apple.com/kb/HT209139Vendor Advisory
https://support.apple.com/kb/HT209193Vendor Advisory

Timeline

Published: Apr 3, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4399?

An access issue existed with privileged API calls. This issue was addressed with additional restrictions. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.

How severe is CVE-2018-4399?

Severity scoring for CVE-2018-4399 is pending analysis. The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4399?

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-2018-4399?

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

Scan your code now

Source: NVD / NIST