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    CVE-2025-43520

    A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.

    Published:Dec 12, 2025
    Last Modified:Apr 27, 2026
    EPS:Dec 12, 2025
    EPSS Score:0.00265
    CVSS Score:5.5

    CISA Notification

    Description

    A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.

    Required Action:

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Apr 3, 2026
    161 days ago
    Alert Date
    Mar 20, 2026
    175 days ago

    Affected Products

    Vendor
    Apple
    Product
    Ios
    Vendor
    Apple
    Product
    Ipad Os
    Vendor
    Apple
    Product
    Ipados
    Vendor
    Apple
    Product
    Iphone Os
    Vendor
    Apple
    Product
    Macos
    Vendor
    Apple
    Product
    Macos Sequoia
    Vendor
    Apple
    Product
    Macos Sonoma
    Vendor
    Apple
    Product
    Macos Tahoe
    Vendor
    Apple
    Product
    Tvos
    Vendor
    Apple
    Product
    Visionos
    Vendor
    Apple
    Product
    Watchos

    Exploits

    No exploit reference

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    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