CVE-2020-9967

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    CVE-2020-9967

    Published: 2 Apr 2021Last Modified: 10 Mar 2026

    Summary:

    Details: Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, tvOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.0, iOS 14.0 and iPadOS 14.0. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

    References: , https://support.apple.com/en-us/HT211931, https://support.apple.com/en-us/HT212011, http://packetstormsecurity.com/files/163501/XNU-Network-Stack-Kernel-Heap-Overflow.html, https://support.apple.com/en-us/HT211843, https://support.apple.com/en-us/HT211844, https://support.apple.com/en-us/HT211850

    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-2020-9967 | CVE-DB