CVE-2018-4456

Description

A memory corruption issue was addressed with improved input validation. This issue affected versions prior to macOS High Sierra 10.13.6, macOS Mojave 10.14.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.39%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: n/a macOS
Published at:
Updated at:

References

Link Tags
https://support.apple.com/kb/HT209139 vendor advisory
https://support.apple.com/kb/HT208937 vendor advisory
https://support.apple.com/kb/HT209341 vendor advisory
http://seclists.org/fulldisclosure/2019/May/20 mailing list
https://support.apple.com/kb/HT210119
https://seclists.org/bugtraq/2019/May/27 mailing list

Frequently Asked Questions

What is the severity of CVE-2018-4456?
CVE-2018-4456 has been scored as a high severity vulnerability.
How to fix CVE-2018-4456?
To fix CVE-2018-4456, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-4456 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-4456 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-4456?
CVE-2018-4456 affects n/a macOS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.