CVE-2021-30771

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    CVE-2021-30771

    Published: 18 Mar 2022Last Modified: 10 Mar 2026

    Summary:

    Details: An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, iOS 14.6 and iPadOS 14.6, watchOS 7.5, tvOS 14.6. Processing a maliciously crafted font file may lead to arbitrary code execution.

    References: , https://support.apple.com/en-us/HT212528, https://support.apple.com/en-us/HT212529, https://support.apple.com/en-us/HT212532, https://support.apple.com/en-us/HT212533

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-30771 | CVE-DB