critical
9.3
CWE
787
Advisory Published
CVE Published
Updated

CVE-2021-30726

First published: Mon May 24 2021(Updated: )

A malicious application may be able to execute arbitrary code with kernel privileges. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. An out-of-bounds write issue was addressed with improved bounds checking.

Credit: Yinyi Wu @3ndy1 Qihoo 360 Vulcan TeamYinyi Wu @3ndy1 Qihoo 360 Vulcan Team product-security@apple.com Liu Long Ant Security LightYinyi Wu @3ndy1 Qihoo 360 Vulcan Team

Affected SoftwareAffected VersionHow to fix
Apple macOS<11.4
11.4
macOS Catalina
macOS Mojave
Apple iOS and macOS>=10.14.0<=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>=11.0.1<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?

    The vulnerability ID is CVE-2021-30726.

  • What is the title of the vulnerability?

    The title of the vulnerability is 'Intel Graphics Driver. An out-of-bounds write issue'.

  • What is the description of the vulnerability?

    The vulnerability allows a malicious application to execute arbitrary code with kernel privileges.

  • Which software versions are affected by this vulnerability?

    The software versions affected are macOS Big Sur 11.4, Mojave, and Catalina.

  • How can I fix this vulnerability?

    To fix this vulnerability, update your operating system to the latest version provided by Apple.

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