Exploited
critical
9.3
CWE
843
Advisory Published
CVE Published
Updated

CVE-2021-30869: Apple iOS, iPadOS, and macOS Type Confusion Vulnerability

First published: Tue Jan 26 2021(Updated: )

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.

Credit: Apple Apple Erye Hernandez Google Threat Analysis GroupClément Lecigne Google Threat Analysis Group Ian Beer Google Project ZeroErye Hernandez Google Threat Analysis GroupClément Lecigne Google Threat Analysis Group Ian Beer Google Project Zero cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Apple iOS<14.4
14.4
Apple iPadOS<14.4
14.4
Apple macOS Big Sur<11.2
11.2
Apple Catalina
Apple Mojave
Apple iOS<12.5.5
12.5.5
Apple iPadOS<14.4
Apple iPhone OS>=12.0<12.5.5
Apple iPhone OS>=14.0<14.4
Apple Mac OS X>=10.14<=10.14.6
Apple Mac OS X>=10.15<=10.15.6
Apple Mac OS X=10.14.6-security_update_2019-001
Apple Mac OS X=10.14.6-security_update_2019-002
Apple Mac OS X=10.14.6-security_update_2019-004
Apple Mac OS X=10.14.6-security_update_2019-005
Apple Mac OS X=10.14.6-security_update_2019-006
Apple Mac OS X=10.14.6-security_update_2019-007
Apple Mac OS X=10.14.6-security_update_2020-001
Apple Mac OS X=10.14.6-security_update_2020-002
Apple Mac OS X=10.14.6-security_update_2020-003
Apple Mac OS X=10.14.6-security_update_2020-004
Apple Mac OS X=10.14.6-security_update_2020-005
Apple Mac OS X=10.14.6-security_update_2020-006
Apple Mac OS X=10.14.6-security_update_2020-007
Apple Mac OS X=10.15.7
Apple Mac OS X=10.15.7-security_update_2020
Apple Mac OS X=10.15.7-security_update_2020-001
Apple Mac OS X=10.15.7-security_update_2020-005
Apple Mac OS X=10.15.7-security_update_2020-007
Apple Mac OS X=10.15.7-security_update_2021-002
Apple Mac OS X=10.15.7-security_update_2021-003
Apple Mac OS X=10.15.7-security_update_2021-004
Apple Mac OS X=10.15.7-security_update_2021-005
Apple Mac OS X=10.15.7-supplemental_update
Apple macOS>=11.0<11.2

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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-2021-30869?

    CVE-2021-30869 is a type confusion vulnerability in Apple iOS, iPadOS, and macOS that may allow a malicious application to execute code with kernel privileges.

  • Which Apple software is affected by CVE-2021-30869?

    Apple iOS, iPadOS, and macOS are affected by CVE-2021-30869.

  • How can a malicious application exploit CVE-2021-30869?

    A malicious application can exploit CVE-2021-30869 to execute code with kernel privileges.

  • What is the severity of CVE-2021-30869?

    The severity of CVE-2021-30869 is not specified.

  • How can I fix CVE-2021-30869?

    To fix CVE-2021-30869, update to the recommended versions of Apple iOS, iPadOS, and macOS.

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