CWE
20
Advisory Published
CVE Published
Updated

CVE-2018-4400: Input Validation

First published: Tue Oct 30 2018(Updated: )

Security. A validation issue was addressed with improved logic.

Credit: Yukinobu Nagayasu LAC CoLtd. Yukinobu Nagayasu LAC CoLtd. Yukinobu Nagayasu LAC CoLtd. product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple iPhone OS<12.1
Apple Mac OS X<10.14.1
Apple watchOS<5.1
Apple watchOS<5.1
5.1
Apple iOS<12.1
12.1
Apple macOS Mojave<10.14.1
10.14.1
Apple High Sierra
Apple Sierra

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2018-4400?

    The severity of CVE-2018-4400 is medium with a severity value of 5.5.

  • What software versions are affected by CVE-2018-4400?

    Versions prior to iOS 12.1, macOS Mojave 10.14.1, and watchOS 5.1 are affected by CVE-2018-4400.

  • How can I fix CVE-2018-4400?

    To fix CVE-2018-4400, update to iOS 12.1 or later, macOS Mojave 10.14.1 or later, and watchOS 5.1 or later.

  • Where can I find more information about CVE-2018-4400?

    You can find more information about CVE-2018-4400 on the Apple support page: [link](https://support.apple.com/en-us/HT209193)

  • What is the Common Weakness Enumeration (CWE) for CVE-2018-4400?

    The Common Weakness Enumeration (CWE) for CVE-2018-4400 is CWE-20.

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