medium
5.9
Advisory Published
CVE Published
Updated

CVE-2021-30716

First published: Mon May 24 2021(Updated: )

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. An attacker in a privileged network position may be able to perform denial of service.

Credit: Aleksandar Nikolic Cisco TalosAleksandar Nikolic Cisco Talos product-security@apple.com Aleksandar Nikolic Cisco Talos

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.4
11.4
macOS Catalina
macOS Mojave
Apple iOS and macOS>=10.14<=10.14.5
Apple iOS and macOS>=10.15<=10.15.6
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.14.6-security_update_2021-003
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-supplemental_update
Apple iOS and 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 the vulnerability ID of this issue?

    The vulnerability ID is CVE-2021-30716.

  • What is the affected software?

    The affected software includes macOS Big Sur (up to version 11.4), Mojave, and Catalina.

  • What is the severity of CVE-2021-30716?

    The severity of CVE-2021-30716 is not specified.

  • How can I fix CVE-2021-30716?

    To fix CVE-2021-30716, update your macOS Big Sur to version 11.4 or apply the necessary security updates from Apple.

  • Where can I find more information about CVE-2021-30716?

    You can find more information about CVE-2021-30716 on the Apple support website: [https://support.apple.com/en-us/HT212530](https://support.apple.com/en-us/HT212530), [https://support.apple.com/en-us/HT212529](https://support.apple.com/en-us/HT212529), [https://support.apple.com/en-us/HT212531](https://support.apple.com/en-us/HT212531).

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