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    CVE-2025-43400

    An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.1 and iPadOS 18.7.1, iOS 26.0.1 and iPadOS 26.0.1, macOS Sequoia 15.7.1, macOS Sonoma 14.8.1, macOS Tahoe 26.0.1, tvOS 26.1, visionOS 26.0.1, watchOS 26.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.

    Published:Sep 29, 2025
    Last Modified:Jun 18, 2026
    EPS:Sep 29, 2025
    EPSS Score:0.06326
    CVSS Score:6.3

    Affected Products

    Vendor
    Apple
    Product
    Ios
    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
    Visionos

    Exploits

    https://github.com/csrXamfi/CVE-2025-43400

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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