high
7.5
CWE
20
Advisory Published
CVE Published
Updated

CVE-2018-4277: Input Validation

First published: Mon Jul 09 2018(Updated: )

In iOS before 11.4.1, watchOS before 4.3.2, tvOS before 11.4.1, Safari before 11.1.1, macOS High Sierra before 10.13.6, a spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation.

Credit: xisigr Tencent product-security@apple.com

Affected SoftwareAffected VersionHow to fix
tvOS<11.4.1
11.4.1
macOS High Sierra<10.13.6
10.13.6
macOS High Sierra
Apple El Capitan
Apple iOS, iPadOS, and watchOS<4.3.2
4.3.2
Apple iOS and iPadOS<11.4.1
11.4.1
Safari<11.1.1
iPhone OS<11.4.1
Apple iOS and macOS<10.13.6
tvOS<11.4.1
Apple iOS, iPadOS, and watchOS<4.3.2

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2018-4277?

    CVE-2018-4277 is a vulnerability in Apple software where a spoofing issue existed in the handling of URLs.

  • How severe is CVE-2018-4277?

    CVE-2018-4277 has a severity value of 7.5 (High).

  • Which software versions are affected by CVE-2018-4277?

    iOS versions up to 11.4.1, watchOS versions up to 4.3.2, tvOS versions up to 11.4.1, Safari versions up to 11.1.1, macOS High Sierra versions up to 10.13.6 are affected by CVE-2018-4277.

  • How can I fix CVE-2018-4277?

    To fix CVE-2018-4277, update to iOS 11.4.1 or later, watchOS 4.3.2 or later, tvOS 11.4.1 or later, Safari 11.1.1 or later, or macOS High Sierra 10.13.6 or later.

  • Where can I find more information about CVE-2018-4277?

    You can find more information about CVE-2018-4277 on the Apple support page: [link](https://support.apple.com/en-us/HT208936).

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