high
8.8
Advisory Published
CVE Published
Updated

CVE-2021-30688

First published: Mon May 24 2021(Updated: )

A malicious application may be able to break out of its sandbox. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. A path handling issue was addressed with improved validation.

Credit: Thijs Alkemade Computest Research Division product-security@apple.com Thijs Alkemade Computest Research Division

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-2021-30688?

    CVE-2021-30688 is a vulnerability in the App Store that allows a malicious application to break out of its sandbox.

  • What is the severity of CVE-2021-30688?

    The severity of CVE-2021-30688 is not specified.

  • How does CVE-2021-30688 affect macOS Big Sur?

    CVE-2021-30688 affects macOS Big Sur version up to but excluding 11.4.

  • How does CVE-2021-30688 affect Apple Catalina?

    The impact of CVE-2021-30688 on Apple Catalina is not mentioned.

  • How can I fix CVE-2021-30688?

    To fix CVE-2021-30688, update your macOS Big Sur to version 11.4 or later.

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