iOS 26.6 Security Update

What iOS 26.6 Fixes

iOS 26.6 and iPadOS 26.6, released July 27, 2026, fixes 97 vulnerabilities in 46 parts of the system, according to Apple's security advisory.

Apple does not say that any of them were exploited before the fix. That makes iOS 26.6 a routine security update: worth installing soon, not an emergency.

It has since been superseded: the newest security release for iOS 26 is iOS 26.7.2 and iPadOS 26.7.2, from October 26, 2026, which includes these fixes.

Grouped by us from the impact Apple gives for each fix; the impact lines below are Apple's own.

Which Devices Get iOS 26.6

Apple lists iOS 26.6 and iPadOS 26.6 for: iPhone 11 and later, iPad Pro 12.9-inch 3rd generation and later, iPad Pro 11-inch 1st generation and later, iPad Air 3rd generation and later, iPad 8th generation and later, and iPad mini 5th generation and later.

The iOS 26.6 release page has its build numbers and release history.

How to Install iOS 26.6

On the iPhone, open Settings → General → Software Update. If more than one update is offered, the one with the higher version number is the current release; the other is for people who want to stay on the previous major version.

Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past iOS 26.6 there is nothing to do.

Every Fix in iOS 26.6

All 97 CVEs in Apple's advisory, the most serious kinds first. Each entry is the part of the system affected, Apple's description of the impact and the fix, and the CVE ID.

• AppleDouble

  Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-43776

• AVEVideoEncoder

  An app may be able to execute arbitrary code with kernel privileges

  A buffer overflow was addressed with improved size validation.

  CVE-2026-64747

• ImageIO

  Processing a maliciously crafted image may lead to arbitrary code execution

  An integer overflow was addressed with improved input validation.

  CVE-2026-43818

• SceneKit

  Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution

  An integer overflow was addressed with improved input validation.

  CVE-2026-64766 CVE-2026-64765

• SceneKit

  Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-64764

• SceneKit

  Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution

  An out-of-bounds write issue was addressed by removing the vulnerable code.

  CVE-2026-64763

• Game Center

  A malicious app may be able to break out of its sandbox

  A parsing issue in the handling of directory paths was addressed with improved path validation.

  CVE-2026-64740

• HFS

  An app may be able to cause unexpected system termination or write kernel memory

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-64705

• IOKit

  An app may be able to cause unexpected system termination or write kernel memory

  A race condition was addressed with improved state handling.

  CVE-2026-43805

• Kernel

  An app may be able to cause unexpected system termination or corrupt kernel memory

  The issue was addressed with improved memory handling.

  CVE-2026-64749

• Kernel

  An app may be able to cause unexpected system termination or corrupt kernel memory

  A use after free issue was addressed with improved memory management.

  CVE-2026-43778

• Kernel

  An app may be able to disclose kernel memory

  The issue was addressed with improved memory handling.

  CVE-2026-64709

• Kernel

  Connecting to a malicious NFS server may lead to kernel memory corruption

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-28931

• Kernel

  A remote user may be able to cause unexpected system termination or corrupt kernel memory

  The issue was addressed with improved memory handling.

  CVE-2026-43810

• Kernel

  An app may be able to cause unexpected system termination or write kernel memory

  A use after free issue was addressed with improved memory management.

  CVE-2026-64751

• Kernel

  An app may be able to cause unexpected system termination or write kernel memory

  The issue was addressed with improved memory handling.

  CVE-2026-65357

• Kernel

  An app may be able to disclose kernel memory

  This issue was addressed with improved redaction of sensitive information.

  CVE-2026-65371

• Kernel

  An app may be able to cause unexpected system termination or corrupt kernel memory

  A race condition was addressed with improved state handling.

  CVE-2026-64717

• libc

  A malicious app may be able to break out of its sandbox

  An integer overflow was addressed with improved input validation.

  CVE-2026-28973

• MediaRemote

  An app may be able to gain root privileges

  A path handling issue was addressed with improved validation.

  CVE-2026-43723

• WebKit

  Maliciously crafted web content may violate iframe sandboxing policy

  A permissions issue was addressed with improved validation.

  CVE-2026-64728

• WebKit

  An app may be able to read files outside of its sandbox

  An access issue was addressed with improved access restrictions.

  CVE-2026-43821

• Accessibility

  An attacker with physical access may be able to access sensitive user data during iPhone Mirroring

  This issue was addressed through improved state management.

  CVE-2026-64732

• App Store

  An app may be able to access sensitive user data

  This issue was addressed with improved checks.

  CVE-2026-43801

• Apple Account

  An app may be able to access sensitive user data

  An authorization issue was addressed with improved state management.

  CVE-2026-65353

• CloudAttestation

  A maliciously crafted app may be able to bypass code signing enforcement

  A validation issue was addressed with improved input sanitization.

  CVE-2026-43813

• Contacts

  An app may be able to add contacts without user authorization

  An authorization issue was addressed with improved validation.

  CVE-2026-64746

• Contacts

  Processing a maliciously crafted contact may leak sensitive data

  The issue was addressed with improved checks.

  CVE-2026-64734

• Contacts

  An app may be able to access information about a user's contacts

  This issue was addressed with improved checks.

  CVE-2026-43797

• curl

  Authentication credentials may be sent to a server on another origin

  This is a vulnerability in open source code and Apple Software is among the affected projects. The CVE-ID was assigned by a third party. Learn more about the issue and CVE-ID at cve.org .

  CVE-2026-3784 CVE-2026-3783

• DriverKit

  An attacker with physical access to a locked device may be able to view sensitive user information

  An out-of-bounds read was addressed with improved bounds checking.

  CVE-2026-43753

• Foundation

  A malicious app may be able to access protected user data

  The issue was addressed with improved input sanitization.

  CVE-2026-43714

• FrontBoard

  An app may be able to access sensitive user data

  This issue was addressed by using HTTPS when sending information over the network.

  CVE-2026-64742

• Game Center

  An app may be able to access sensitive user data

  This issue was addressed with improved data protection.

  CVE-2026-43796

• Kernel

  A remote attacker may be able to bypass network filters

  An inconsistent user interface issue was addressed with improved state management.

  CVE-2026-64735

• Kernel

  An app may be able to access sensitive user data

  This issue was addressed through improved state management.

  CVE-2026-64721

• Managed Configuration

  An app may be able to access sensitive user data

  An authorization issue was addressed with improved state management.

  CVE-2026-64743

• NSColorPanel

  An app may be able to leak sensitive user information

  This issue was addressed with additional entitlement checks.

  CVE-2026-64711

• Single Sign-On

  An app may be able to access user-sensitive data

  The issue was addressed with improved checks.

  CVE-2026-43762

• Siri

  An app may be able to access sensitive user data

  An information disclosure issue was addressed by removing the vulnerable code.

  CVE-2026-43800

• WorkoutKit

  An app may be able to access sensitive user data

  An authorization issue was addressed with improved state management.

  CVE-2026-64755

• WebKit

  Visiting a website that frames malicious content may lead to UI spoofing

  The issue was addressed with improved UI.

  CVE-2026-64730

• Apple Neural Engine

  An app may be able to cause unexpected system termination

  A use after free issue was addressed with improved memory management.

  CVE-2026-28928

• Apple Neural Engine

  An app may be able to cause unexpected system termination

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-43748

• AppleAVD

  An app may be able to cause unexpected system termination

  A use after free issue was addressed with improved memory management.

  CVE-2026-65407

• Audio

  An app may be able to cause a denial-of-service

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-64725

• CoreAudio

  Processing a maliciously crafted audio file may corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-43673

• CoreAudio

  A remote attacker may be able to cause unexpected system termination

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-43803

• CoreMedia

  Processing a maliciously crafted video file may lead to unexpected app termination

  A memory corruption issue was addressed with improved memory handling.

  CVE-2026-43711

• CoreMedia Video Toolbox

  Processing a maliciously crafted video file may lead to unexpected app termination or corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-43702

• Heimdal

  An app may be able to cause a denial-of-service

  An out-of-bounds read was addressed with improved bounds checking.

  CVE-2026-64692

• ImageIO

  Processing a maliciously crafted texture may lead to unexpected app termination

  An integer overflow was addressed with improved input validation.

  CVE-2026-43780

• ImageIO

  Processing a maliciously crafted image may corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-64716

• ImageIO

  Processing a maliciously crafted file may lead to unexpected app termination

  The issue was addressed with improved bounds checks.

  CVE-2026-64758

• ImageIO

  Processing a maliciously crafted file may lead to a denial-of-service

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-64754

• ImageIO

  Processing a maliciously crafted image may lead to a denial-of-service

  A type confusion issue was addressed with improved checks.

  CVE-2026-64693

• Kernel

  An app may be able to cause unexpected system termination

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-43739 CVE-2026-43816

• Kernel

  An app may be able to cause unexpected system termination

  A use after free issue was addressed with improved memory management.

  CVE-2026-43822 CVE-2026-64729 CVE-2026-43814 CVE-2026-64700 CVE-2026-43799

• Kernel

  An app may be able to cause unexpected system termination

  An out-of-bounds read was addressed with improved bounds checking.

  CVE-2026-43817

• Kernel

  An app may be able to cause unexpected system termination

  An integer overflow was addressed with improved input validation.

  CVE-2026-43769

• Kernel

  An app may be able to cause unexpected system termination

  A memory initialization issue was addressed with improved memory handling.

  CVE-2026-64775

• Kernel

  An app may be able to cause unexpected system termination

  A race condition was addressed with improved state handling.

  CVE-2026-64720

• Kernel

  An app may be able to cause unexpected system termination

  A use-after-free issue was addressed with improved memory management.

  CVE-2026-43808

• Libnotify

  An attacker may be able to cause unexpected app termination

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-64739

• mDNSResponder

  An attacker on the local network may be able to cause a denial-of-service

  The issue was addressed with improved memory handling.

  CVE-2026-64724

• Model I/O

  Processing a maliciously crafted image may corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-43733 CVE-2026-43729

• Model I/O

  A remote attacker may be able to cause unexpected application termination or heap corruption

  An out-of-bounds write issue was addressed with improved input validation.

  CVE-2026-64772

• Model I/O

  A remote attacker may be able to cause unexpected application termination or heap corruption

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-64771

• Model I/O

  A remote attacker may be able to cause unexpected application termination or heap corruption

  An integer overflow was addressed with improved input validation.

  CVE-2026-64774

• Model I/O

  A remote attacker may be able to cause unexpected application termination or heap corruption

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-64770 CVE-2026-64769

• Model I/O

  A remote attacker may cause an unexpected app termination

  An out-of-bounds read issue was addressed with improved input validation.

  CVE-2026-64768

• Pro Res

  An app may be able to cause unexpected system termination

  A use after free issue was addressed with improved memory management.

  CVE-2026-43812

• WebKit

  Processing maliciously crafted web content may lead to an unexpected Safari crash

  A use-after-free issue was addressed with improved memory management.

  CVE-2026-64783

• WebKit

  Processing maliciously crafted web content may lead to an unexpected Safari crash

  A memory corruption issue was addressed with improved state management.

  CVE-2026-64757

• WebKit

  Visiting a website may lead to an app denial-of-service

  This issue was addressed through improved state management.

  CVE-2026-43804

• WebKit Canvas

  Processing maliciously crafted web content may lead to an unexpected Safari crash

  A use-after-free issue was addressed with improved memory management.

  CVE-2026-64718

• WebRTC

  Processing maliciously crafted web content may lead to an unexpected Safari crash

  An out-of-bounds access issue was addressed with improved bounds checking.

  CVE-2026-64719

• Wi-Fi

  An attacker in physical proximity may be able to corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-64726

• Accounts Framework

  An app may be able to fingerprint the user

  This issue was addressed with improved data protection.

  CVE-2026-64733

• AuthKit

  An app may be able to fingerprint the user

  A permissions issue was addressed with additional restrictions.

  CVE-2026-43730

• BackgroundAssets

  An app may be able to delete files for which it does not have permission

  A permissions issue was addressed with improved validation.

  CVE-2026-64707

• Books

  An app may be able to modify protected parts of the file system

  A race condition was addressed with improved checks.

  CVE-2026-43811

• CoreAudio

  Processing an audio stream in a maliciously crafted media file may terminate the process

  An out-of-bounds write issue was addressed with improved bounds checking.

  CVE-2026-43744

• libarchive

  Processing a maliciously crafted file may result in disclosure of process memory

  This is a vulnerability in open source code and Apple Software is among the affected projects. The CVE-ID was assigned by a third party. Learn more about the issue and CVE-ID at cve.org .

  CVE-2026-4424

• Model I/O

  Processing a 3D model may result in disclosure of process memory

  A buffer overflow issue was addressed with improved memory handling.

  CVE-2026-64722

• Sandbox Profiles

  An app may be able to read a persistent device identifier

  A permissions issue was addressed with additional restrictions.

  CVE-2026-64741

• Watch App

  An app may be able to fingerprint the user

  A privacy issue was addressed by moving sensitive data.

  CVE-2026-28938

• WebKit

  Websites may know if the user has visited a given link

  This issue was addressed with improved checks.

  CVE-2026-64713

iOS 26 Security Release History

iOS 26.6 in context: the security releases Apple has published for iOS 26, newest first, with the number of fixes each carried.

The Same Fixes Elsewhere

Apple ships most fixes to every platform that shares the code, and to older versions still under support. These releases close at least one of the same CVEs:

Frequently Asked Questions