high
7.8
CWE
269
Advisory Published
CVE Published
Updated

CVE-2021-1839

First published: Mon Apr 26 2021(Updated: )

The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate their privileges.

Credit: Tim Michaud @TimGMichaud Zoom Video CommunicationsGary Nield ECSC Group plcTim Michaud @TimGMichaud Zoom Video CommunicationsGary Nield ECSC Group plc product-security@apple.com Tim Michaud @TimGMichaud Zoom Video CommunicationsGary Nield ECSC Group plc

Affected SoftwareAffected VersionHow to fix
Apple Mojave
Apple macOS Big Sur<11.3
11.3
Apple Catalina
Apple Mac OS X=10.14
Apple Mac OS X=10.14.0
Apple Mac OS X=10.14.1
Apple Mac OS X=10.14.2
Apple Mac OS X=10.14.3
Apple Mac OS X=10.14.4
Apple Mac OS X=10.14.4-beta4
Apple Mac OS X=10.14.5
Apple Mac OS X=10.14.6
Apple Mac OS X=10.14.6
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=10.14.6-security_update_2021-001
Apple Mac OS X=10.14.6-security_update_2021-002
Apple Mac OS X=10.15
Apple Mac OS X=10.15.1
Apple Mac OS X=10.15.2
Apple Mac OS X=10.15.3
Apple Mac OS X=10.15.4
Apple Mac OS X=10.15.5
Apple Mac OS X=10.15.6
Apple Mac OS X=10.15.6
Apple Mac OS X=10.15.6-supplemental_update
Apple Mac OS X=10.15.7
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 macOS>=11.0<11.3

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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?

    The vulnerability ID is CVE-2021-1839.

  • What software versions are affected by CVE-2021-1839?

    CVE-2021-1839 affects Apple Catalina, Apple Mojave, and Apple macOS Big Sur up to and exclusive of version 11.3.

  • What is the severity of CVE-2021-1839?

    The severity of CVE-2021-1839 has not been mentioned in the provided information.

  • How was CVE-2021-1839 addressed?

    CVE-2021-1839 was addressed with improved permissions logic.

  • Where can I find more information about CVE-2021-1839?

    You can find more information about CVE-2021-1839 on the Apple support page: [link to Apple support page]

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