iOS 26 Security Update

What iOS 26 Fixes

iOS 26 and iPadOS 26, released September 15, 2025, fixes 36 vulnerabilities in 28 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 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It has since been superseded: the newest security release for iOS 26 is iOS 26.7.2 and iPadOS 26.7.2, from October 26, 2026, which includes these fixes.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

Apple lists iOS 26 and iPadOS 26 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 release page has its build numbers and release history.

How to Install iOS 26

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 there is nothing to do.

Every Fix in iOS 26

All 36 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.

• Audio

  A malicious app may be able to read kernel memory

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

  CVE-2025-43361

• MetricKit

  An unprivileged process may be able to terminate a root processes

  A denial-of-service issue was addressed with improved input validation.

  CVE-2025-43365

• Sandbox

  An app may be able to break out of its sandbox

  A permissions issue was addressed with additional restrictions.

  CVE-2025-43329

• Shortcuts

  A shortcut may be able to bypass sandbox restrictions

  A permissions issue was addressed with additional sandbox restrictions.

  CVE-2025-43358

• AppleMobileFileIntegrity

  An app may be able to access sensitive user data

  A permissions issue was addressed with additional restrictions.

  CVE-2025-43317

• Authentication Services

  Password fields may be unintentionally revealed

  The issue was addressed with improved UI.

  CVE-2025-43360

• Bluetooth

  An app may be able to access sensitive user data

  A logging issue was addressed with improved data redaction.

  CVE-2025-43354 CVE-2025-43303

• IOKit

  An app may be able to access sensitive user data

  An authorization issue was addressed with improved state management.

  CVE-2025-31255

• Kernel

  An app may be able to access sensitive user data

  A correctness issue was addressed with improved checks.

  CVE-2025-43345

• Notifications

  An attacker with physical access to an iOS device may be able to view notification contents from the Lock Screen

  A logic issue was addressed with improved checks.

  CVE-2025-43309

• Siri

  Private Browsing tabs may be accessed without authentication

  This issue was addressed through improved state management.

  CVE-2025-30468

• Spell Check

  An app may be able to access sensitive user data

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

  CVE-2025-43190

• WebKit

  A remote attacker may be able to view leaked DNS queries with Private Relay turned on

  A logic issue was addressed with improved state management.

  CVE-2025-43376

• Apple Neural Engine

  An app may be able to cause unexpected system termination

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

  CVE-2025-43344

• Audio

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

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

  CVE-2025-43346

• CoreAudio

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

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

  CVE-2025-43349

• CoreMedia

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

  The issue was addressed with improved input validation.

  CVE-2025-43372

• ImageIO

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

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

  CVE-2025-43338

• IOHIDFamily

  An app may be able to cause unexpected system termination

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

  CVE-2025-43302

• MobileStorageMounter

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

  A type confusion issue was addressed with improved memory handling.

  CVE-2025-43355

• SQLite

  Processing a file may lead to memory corruption

  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-2025-6965

• WebKit

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

  The issue was addressed with improved memory handling.

  CVE-2025-43272

• WebKit

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

  The issue was addressed with improved memory handling.

  CVE-2025-43343

• WebKit

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

  A correctness issue was addressed with improved checks.

  CVE-2025-43342

• WebKit

  Processing maliciously crafted web content may lead to memory corruption

  The issue was addressed with improved memory handling.

  CVE-2025-43419

• WebKit Process Model

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

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

  CVE-2025-43368

• Call History

  An app may be able to fingerprint the user

  This issue was addressed with improved redaction of sensitive information.

  CVE-2025-43357

• CloudKit

  An app may be able to fingerprint the user

  This issue was addressed with additional entitlement checks.

  CVE-2025-43323

• Kernel

  A UDP server socket bound to a local interface may become bound to all interfaces

  A logic issue was addressed with improved state management.

  CVE-2025-43359

• LaunchServices

  An app may be able to monitor keystrokes without user permission

  The issue was addressed with improved checks.

  CVE-2025-43362

• Notes

  An attacker with physical access to an unlocked device may be able to view an image in the most recently viewed locked note

  The issue was addressed with improved handling of caches.

  CVE-2025-43203

• QuickLook

  Processing a maliciously crafted Keynote file may disclose memory contents

  The issue was addressed with improved bounds checks.

  CVE-2025-46306

• Safari

  Processing maliciously crafted web content may lead to unexpected URL redirection

  This issue was addressed with improved URL validation.

  CVE-2025-31254

• System

  An input validation issue was addressed

  This issue was addressed by removing the vulnerable code.

  CVE-2025-43347

• WebKit

  A website may be able to access sensor information without user consent

  The issue was addressed with improved handling of caches.

  CVE-2025-43356

iOS 26 Security Release History

iOS 26 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