high
8.8
Advisory Published
CVE Published
Updated

CVE-2023-42866

First published: Mon Jul 24 2023(Updated: )

WebKit. The issue was addressed with improved memory handling.

Credit: product-security@apple.com

Affected SoftwareAffected VersionHow to fix
Apple macOS<13.5
13.5
tvOS<16.6
16.6
Apple Mobile Safari<16.6
16.6
Apple iOS, iPadOS, and watchOS<16.6
16.6
Apple iOS, iPadOS, and watchOS<16.6
16.6
Apple iOS, iPadOS, and watchOS<9.6
9.6
Apple Mobile Safari<16.6
Apple iOS, iPadOS, and watchOS<16.6
iStyle @cosme iPhone OS<16.6
Apple iOS and macOS<13.5
tvOS<16.6
Apple iOS, iPadOS, and watchOS<9.6

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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 the severity of CVE-2023-42866?

    CVE-2023-42866 is classified with a medium severity due to its potential impact on affected software.

  • How do I fix CVE-2023-42866?

    To address CVE-2023-42866, users should update their affected Apple products to the latest version, specifically beyond version 16.6 for Safari, iOS, iPadOS, and tvOS, and to versions beyond 13.5 for macOS and 9.6 for watchOS.

  • Which products are affected by CVE-2023-42866?

    CVE-2023-42866 affects multiple Apple products including Safari, iOS, iPadOS, macOS Ventura, watchOS, and tvOS versions up to 16.6 or 9.6, depending on the product.

  • What vulnerabilities does CVE-2023-42866 address?

    CVE-2023-42866 addresses issues related to memory handling in WebKit that could potentially be exploited.

  • Is it safe to use devices affected by CVE-2023-42866?

    Until the affected devices are updated to versions that address CVE-2023-42866, it is recommended to avoid potentially risky activities such as browsing untrusted websites.

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