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    CVE-2023-40423

    The issue was addressed with improved memory handling. This issue is fixed in iOS 17.1 and iPadOS 17.1, macOS Monterey 12.7.1, iOS 16.7.2 and iPadOS 16.7.2, macOS Ventura 13.6.1, macOS Sonoma 14.1. An app may be able to execute arbitrary code with kernel privileges.

    Published:Oct 25, 2023
    Last Modified:Feb 13, 2025
    EPS:Oct 25, 2023
    EPSS Score:0.0005
    CVSS Score:7.8

    Affected Products

    Vendor
    Apple
    Product
    Ios And Ipados
    Vendor
    Apple
    Product
    Ipados
    Vendor
    Apple
    Product
    Iphone Os
    Vendor
    Apple
    Product
    Macos

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-65367 (CVSS 5.5) — A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and…
    CVE-2026-43657 (CVSS 3.3) — A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 26.5 and iPadOS 26.…
    CVE-2026-43670 (CVSS 8.8) — A Content Security Policy bypass was addressed with improved enforcement in AudioWorklet contexts. This issue …
    CVE-2026-65331 (CVSS 4.3) — This issue was addressed through improved state management. This issue is fixed in Safari 26.6.1, iOS 18.7.10 …
    CVE-2026-64760 (CVSS 5.5) — An information leakage was addressed with additional validation. This issue is fixed in iOS 18.7.10 and iPadOS…
    CVE-2026-43794 (CVSS 8.8) — A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, i…
    CVE-2026-65346 (CVSS 8.8) — An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6.1 and iPadOS…
    CVE-2026-65351 (CVSS 4.3) — This issue was addressed through improved state management. This issue is fixed in Safari 26.6.1, iOS 26.6.1 a…
    CVE-2026-64782 (CVSS 3.1) — A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, i…
    CVE-2026-65347 (CVSS 6.5) — The issue was addressed with improved checks. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe…

    References

    http://seclists.org/fulldisclosure/2023/Oct/19
    http://seclists.org/fulldisclosure/2023/Oct/21
    http://seclists.org/fulldisclosure/2023/Oct/23
    http://seclists.org/fulldisclosure/2023/Oct/24
    http://seclists.org/fulldisclosure/2023/Oct/26
    https://support.apple.com/en-us/HT213981
    https://support.apple.com/en-us/HT213982
    https://support.apple.com/en-us/HT213983
    https://support.apple.com/en-us/HT213984
    https://support.apple.com/en-us/HT213985
    https://support.apple.com/kb/HT213981
    https://support.apple.com/kb/HT213982
    https://support.apple.com/kb/HT213983
    https://support.apple.com/kb/HT213984
    https://support.apple.com/kb/HT213985
    http://seclists.org/fulldisclosure/2023/Oct/19
    http://seclists.org/fulldisclosure/2023/Oct/21
    http://seclists.org/fulldisclosure/2023/Oct/23
    http://seclists.org/fulldisclosure/2023/Oct/24
    http://seclists.org/fulldisclosure/2023/Oct/26
    https://support.apple.com/en-us/HT213981
    https://support.apple.com/en-us/HT213982
    https://support.apple.com/en-us/HT213983
    https://support.apple.com/en-us/HT213984
    https://support.apple.com/en-us/HT213985
    https://support.apple.com/kb/HT213981
    https://support.apple.com/kb/HT213982
    https://support.apple.com/kb/HT213983
    https://support.apple.com/kb/HT213984
    https://support.apple.com/kb/HT213985

    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