CVE-2021-1789

    Dashboard / Vulnerabilities / CVE-2021-1789

    CVE-2021-1789

    Published: 2 Apr 2021Last Modified: 16 Apr 2026

    Summary:

    Details: A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.

    References: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1789, https://support.apple.com/en-us/HT212146, https://support.apple.com/en-us/HT212147, https://support.apple.com/en-us/HT212148, https://support.apple.com/en-us/HT212149, https://security.gentoo.org/glsa/202104-03, https://support.apple.com/en-us/HT212152, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/

    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-2021-1789 | CVE-DB