medium
4.3
CWE
20
Advisory Published
CVE Published
Updated

CVE-2021-30671: Input Validation

First published: Mon May 24 2021(Updated: )

A validation issue was addressed with improved logic. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. A malicious application may be able to send unauthorized Apple events to Finder.

Credit: Ryan Bell @iRyanBell product-security@apple.com Ryan Bell @iRyanBell

Affected SoftwareAffected VersionHow to fix
Apple macOS Big Sur<11.4
11.4
Apple Catalina
Apple Mac OS X>=10.15<=10.15.6
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_2021-001
Apple Mac OS X=10.15.7-security_update_2021-002
Apple Mac OS X=10.15.7-supplemental_update
Apple macOS>=11.0<11.4

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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-2021-30671?

    CVE-2021-30671 is a vulnerability in macOS Big Sur and Catalina that allows for a validation issue with improved logic.

  • Which versions of macOS are affected by CVE-2021-30671?

    macOS Big Sur 11.4 and earlier versions, as well as macOS Catalina, are affected by CVE-2021-30671.

  • How can I fix CVE-2021-30671?

    To fix CVE-2021-30671, users should update their macOS to the latest version available.

  • Where can I find more information about CVE-2021-30671?

    You can find more information about CVE-2021-30671 on the official Apple support page: [https://support.apple.com/en-us/HT212530](https://support.apple.com/en-us/HT212530)

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