CVE-2018-4282

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% 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-125

Description

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2.

Affected products

Apple Iphone Os: before 11.4.1 — fixed in 11.4.1
Apple tvOS: before 11.4.1 — fixed in 11.4.1
Apple watchOS: before 4.3.2 — fixed in 4.3.2

How to fix

Upgrade to a fixed version: Apple Iphone Os 11.4.1; Apple tvOS 11.4.1; Apple watchOS 4.3.2. Check the vendor advisory for mitigations.

References

https://support.apple.com/kb/HT208935
https://support.apple.com/kb/HT208936
https://support.apple.com/kb/HT208938
https://support.apple.com/kb/HT208935
https://support.apple.com/kb/HT208936
https://support.apple.com/kb/HT208938

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