CVE-2018-4368

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-04-03 · updated 2026-06-17
Weakness: CWE-20

Description

A denial of service issue was addressed with improved validation. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1.

Affected products

Apple Iphone Os: before 12.1 — fixed in 12.1
macOS: before 10.14.1 — fixed in 10.14.1
Apple tvOS: before 12.1 — fixed in 12.1
Apple watchOS: before 5.1 — fixed in 5.1

How to fix

Upgrade to a fixed version: Apple Iphone Os 12.1; macOS 10.14.1; Apple tvOS 12.1; Apple watchOS 5.1. Check the vendor advisory for mitigations.

References

https://support.apple.com/kb/HT209192
https://support.apple.com/kb/HT209193
https://support.apple.com/kb/HT209194
https://support.apple.com/kb/HT209195
https://support.apple.com/kb/HT209192
https://support.apple.com/kb/HT209193
https://support.apple.com/kb/HT209194
https://support.apple.com/kb/HT209195

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