critical
9.3
CWE
787
Advisory Published
CVE Published
Updated

CVE-2020-9821

First published: Mon May 18 2020(Updated: )

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. A malicious application may be able to execute arbitrary code with kernel privileges.

Credit: Xinru Chi Tielei Wang Pangu Lab product-security@apple.com

Affected SoftwareAffected VersionHow to fix
tvOS<13.4.5
13.4.5
macOS Catalina<10.15.5
10.15.5
macOS Mojave
macOS High Sierra
Apple iOS, iPadOS, and watchOS<13.5
13.5
Apple iOS, iPadOS, and watchOS<13.5
13.5
Apple iOS, iPadOS, and watchOS<6.2.5
6.2.5
Apple iOS, iPadOS, and watchOS<13.5
iOS<13.5
Apple iOS and macOS<10.15.5
tvOS<13.4.5
Apple iOS, iPadOS, and watchOS<6.2.5

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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-2020-9821?

    CVE-2020-9821 is a memory corruption vulnerability in the Kernel that was addressed with improved state management.

  • Which software is affected by CVE-2020-9821?

    CVE-2020-9821 affects Apple watchOS 6.2.5, Apple macOS Catalina 10.15.5, Apple iOS 13.5, Apple iPadOS 13.5, and Apple tvOS 13.4.5.

  • Is there a remedy available for CVE-2020-9821?

    Yes, the remedy for CVE-2020-9821 is to update to the specified versions of the affected software.

  • Where can I find more information about CVE-2020-9821?

    More information about CVE-2020-9821 can be found on the Apple support website.

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