CVE-2021-1858

    Dashboard / Vulnerabilities / CVE-2021-1858

    CVE-2021-1858

    Published: 8 Sept 2021Last Modified: 10 Mar 2026

    Summary:

    Details: Processing a maliciously crafted image may lead to arbitrary code execution. This issue is fixed in Security Update 2021-002 Catalina, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. An out-of-bounds write issue was addressed with improved bounds checking.

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

    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-2021-1858 | CVE-DB