iOS 18.7.9 Security Update

What iOS 18.7.9 Fixes

iOS 18.7.9 and iPadOS 18.7.9, released May 11, 2026, fixes 49 vulnerabilities in 29 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 18.7.9 a routine security update: worth installing soon, not an emergency.

It has since been superseded: the newest security release for iOS 18 is iOS 18.7.11 and iPadOS 18.7.11, from October 26, 2026, which includes these fixes.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 18.7.9

Apple lists iOS 18.7.9 and iPadOS 18.7.9 for: iPhone XS, iPhone XS Max, iPhone XR, iPad 7th generation.

How to Install iOS 18.7.9

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 18.7.9 there is nothing to do.

Every Fix in iOS 18.7.9

All 49 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.

• Wi-Fi

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

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

  CVE-2026-28819

• App Intents

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

  A logic issue was addressed with improved restrictions.

  CVE-2026-28995

• IOHIDFamily

  An app may be able to determine kernel memory layout

  A logging issue was addressed with improved data redaction.

  CVE-2026-28943

• Kernel

  An app may be able to disclose kernel memory

  The issue was addressed with improved memory handling.

  CVE-2026-43654

• Kernel

  A local user may be able to cause unexpected system termination or read kernel memory

  A buffer overflow was addressed with improved input validation.

  CVE-2026-28897

• Kernel

  An app may be able to gain root privileges

  An authorization issue was addressed with improved state management.

  CVE-2026-28951

• Kernel

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

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

  CVE-2026-28972

• mDNSResponder

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

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

  CVE-2026-43668

• Siri

  An app may be able to elevate privileges

  A logic issue was addressed with improved checks.

• Wi-Fi

  An attacker in a privileged network position may be able to perform denial-of-service attack using crafted Wi-Fi packets

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

  CVE-2026-28994

• Accounts

  An app may be able to access sensitive user data

  An authorization issue was addressed with improved state management.

  CVE-2026-28877

• FileProvider

  An app may be able to access sensitive user data

  A race condition was addressed with additional validation.

  CVE-2026-43659

• GeoServices

  An app may be able to access sensitive user data

  An information leakage was addressed with additional validation.

  CVE-2026-28870

• Kernel

  A maliciously crafted disk image may bypass Gatekeeper checks

  A file quarantine bypass was addressed with additional checks.

  CVE-2026-28954

• Kernel

  An app may be able to leak sensitive kernel state

  A logging issue was addressed with improved data redaction.

  CVE-2026-28987

• Networking

  An attacker may be able to track users through their IP address

  This issue was addressed through improved state management.

  CVE-2026-28906

• Privacy

  An app may be able to circumvent App Privacy Report logging

  This issue was addressed with additional entitlement checks.

  CVE-2026-28873

• Shortcuts

  An app may be able to access user-sensitive data

  This issue was addressed by adding an additional prompt for user consent.

  CVE-2026-28993

• WebKit

  Processing maliciously crafted web content may disclose sensitive user information

  This issue was addressed with improved access restrictions.

  CVE-2026-28962

• WebKit

  Processing maliciously crafted web content may bypass Content Security Policy

  A Content Security Policy bypass was addressed with improved enforcement in AudioWorklet contexts.

  CVE-2026-43670

• zlib

  Visiting a maliciously crafted website may leak sensitive data

  An information leakage was addressed with additional validation.

  CVE-2026-28920

• APFS

  An app may be able to cause unexpected system termination

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-28959

• Calendar

  A remote attacker may be able to cause a denial-of-service

  A resource exhaustion issue was addressed with improved input validation.

  CVE-2026-28872

• Calling Framework

  A remote attacker may be able to cause a denial-of-service

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

  CVE-2026-28894

• CoreServices

  Processing a maliciously crafted file may lead to unexpected app termination

  The issue was addressed with improved checks.

  CVE-2026-28936

• ImageIO

  Processing a maliciously crafted file may lead to unexpected app termination

  The issue was addressed with improved bounds checks.

  CVE-2026-28977

• IOHIDFamily

  An attacker may be able to cause unexpected app termination

  A memory corruption vulnerability was addressed with improved locking.

  CVE-2026-28992

• IOKit

  An app may be able to cause unexpected system termination

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

  CVE-2026-28969

• Kernel

  An app may be able to cause unexpected system termination

  An integer overflow was addressed with improved input validation.

  CVE-2026-28952

• Kernel

  An app may be able to cause unexpected system termination

  A race condition was addressed with additional validation.

  CVE-2026-28986

• LaunchServices

  A remote attacker may be able to cause a denial of service

  A type confusion issue was addressed with improved checks.

  CVE-2026-28983

• 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-2026-43653

• mDNSResponder

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

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

  CVE-2026-43666

• Model I/O

  Processing a maliciously crafted image may corrupt process memory

  The issue was addressed with improved memory handling.

  CVE-2026-28940

• Model I/O

  Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents

  The issue was addressed with improved checks.

  CVE-2026-28941

• Multi-Touch

  An app may be able to cause unexpected system termination

  A null pointer dereference was addressed with improved input validation.

  CVE-2026-65367

• Quick Look

  Parsing a maliciously crafted file may lead to an unexpected app termination

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

  CVE-2026-43656

• SceneKit

  A remote attacker may be able to cause unexpected app termination

  A buffer overflow was addressed with improved bounds checking.

  CVE-2026-28846

• WebKit

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

  The issue was addressed with improved memory handling.

  CVE-2026-28847 CVE-2026-28904 CVE-2026-28903 CVE-2026-28955 CVE-2026-28953

• WebKit

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

  The issue was addressed with improved input validation.

  CVE-2026-28917

• Audio

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

  The issue was addressed with improved memory handling.

  CVE-2026-39869

• libxpc

  An app may be able to enumerate a user's installed apps

  This issue was addressed with improved checks.

  CVE-2026-28882

• Mail Drafts

  Replying to an email could display remote images in Mail in Lockdown Mode

  A logic issue was addressed with improved checks.

  CVE-2026-28929

• Status Bar

  An app may be able to capture a user's screen

  An issue with app access to camera metadata was addressed with improved logic.

  CVE-2026-28957

• WebKit

  Processing maliciously crafted web content may prevent Content Security Policy from being enforced

  The issue was addressed with improved input validation.

  CVE-2026-28907

• WebKit

  Processing maliciously crafted web content may prevent Content Security Policy from being enforced

  A validation issue was addressed with improved logic.

  CVE-2026-43660

iOS 18 Security Release History

iOS 18.7.9 in context: the security releases Apple has published for iOS 18, 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