CVE-2021-1879

    Dashboard / Vulnerabilities / CVE-2021-1879

    CVE-2021-1879

    Published: 2 Apr 2021Last Modified: 10 Mar 2026

    Summary:

    Details: This issue was addressed by improved management of object lifetimes. This issue is fixed in iOS 12.5.2, iOS 14.4.2 and iPadOS 14.4.2, watchOS 7.3.3. Processing maliciously crafted web content may lead to universal cross site scripting. Apple is aware of a report that this issue may have been actively exploited..

    References: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1879, , https://support.apple.com/en-us/HT212256, https://support.apple.com/en-us/HT212257, https://support.apple.com/en-us/HT212258

    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-2021-1879 | CVE-DB