CVE-2021-1857

    Dashboard / Vulnerabilities / CVE-2021-1857

    CVE-2021-1857

    Published: 8 Sept 2021Last Modified: 10 Mar 2026

    Summary:

    Details: A memory initialization issue was addressed with improved memory handling. This issue is fixed in iTunes 12.11.3 for Windows, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iCloud for Windows 12.3, macOS Big Sur 11.3, watchOS 7.4, tvOS 14.5, iOS 14.5 and iPadOS 14.5. Processing maliciously crafted web content may disclose sensitive user information.

    References: , https://support.apple.com/en-us/HT212317, https://support.apple.com/en-us/HT212321, https://support.apple.com/en-us/HT212323, https://support.apple.com/en-us/HT212326, https://support.apple.com/en-us/HT212319, https://support.apple.com/en-us/HT212324, https://support.apple.com/en-us/HT212325, https://support.apple.com/en-us/HT212327

    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-2021-1857 | CVE-DB