CWE
362
Advisory Published
CVE Published
Updated

CVE-2021-30786: Race Condition

First published: Wed Jul 21 2021(Updated: )

A race condition was addressed with improved state handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution.

Credit: product-security@apple.com ryuzaki

Affected SoftwareAffected VersionHow to fix
Apple macOS Big Sur<11.5
11.5
Apple iPhone OS<14.7
Apple macOS>=11.0<11.5

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2021-30786?

    CVE-2021-30786 is a vulnerability in CoreGraphics that allows for a race condition, which has been addressed with improved state handling.

  • What software is affected by CVE-2021-30786?

    The affected software is macOS Big Sur version up to but excluding 11.5.

  • How can I fix CVE-2021-30786?

    To fix CVE-2021-30786, update your macOS Big Sur to version 11.5 or later.

  • What is the severity of CVE-2021-30786?

    The severity of CVE-2021-30786 is not specified.

  • Where can I find more information about CVE-2021-30786?

    You can find more information about CVE-2021-30786 at the following reference: https://support.apple.com/en-us/HT212602

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