CVE-2018-4427

Name: CVE-2018-4427
Creator: NVD / NIST
Published: 2019-04-03T18:29:15.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.06%

Last modified Jun 17, 2026

CVE-2018-4427 is a vulnerability of currently unknown severity. A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to: iOS 12.1, watchOS 5.1.2, tvOS 12.1.1, macOS High Sierra 10.13.6 Security Update 2018-003 High Sierra, macOS Sierra 10.12.6 Security Update 2018-006.. EPSS estimates a 1.06% chance of exploitation in the next 30 days.

Description

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to: iOS 12.1, watchOS 5.1.2, tvOS 12.1.1, macOS High Sierra 10.13.6 Security Update 2018-003 High Sierra, macOS Sierra 10.12.6 Security Update 2018-006.

Metrics

EPSS Probability

1.06%

60.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	< 12.1
Apple	Mac Os X	< 10.14.2
Apple	Tvos	< 12.1.1
Apple	Watchos	< 5.1.2

References

https://support.apple.com/kb/HT209192Vendor Advisory
https://support.apple.com/kb/HT209341Vendor Advisory
https://support.apple.com/kb/HT209342Vendor Advisory
https://support.apple.com/kb/HT209343Vendor Advisory
https://support.apple.com/kb/HT209192Vendor Advisory
https://support.apple.com/kb/HT209341Vendor Advisory
https://support.apple.com/kb/HT209342Vendor Advisory
https://support.apple.com/kb/HT209343Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2018-4427?

How severe is CVE-2018-4427?

Severity scoring for CVE-2018-4427 is pending analysis. The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4427?

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-2018-4427?

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

Scan your code now

Source: NVD / NIST