iOS 18 Security Update

What iOS 18 Fixes

iOS 18 and iPadOS 18, released September 16, 2024, fixes 48 vulnerabilities in 32 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 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It has since been superseded: the newest security release for iOS 18 is iOS 18.7.11 and iPadOS 18.7.11, from October 26, 2026, which includes these fixes.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

Apple lists iOS 18 and iPadOS 18 for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch 3rd generation and later, iPad Pro 11-inch 1st generation and later, iPad Air 3rd generation and later, iPad 7th generation and later, and iPad mini 5th generation and later.

How to Install iOS 18

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 there is nothing to do.

Every Fix in iOS 18

All 48 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.

• LaunchServices

  An application may be able to break out of its sandbox

  A logic issue was addressed with improved checks.

  CVE-2024-44122

• Safari

  Maliciously crafted web content may violate iframe sandboxing policy

  A custom URL scheme handling issue was addressed with improved input validation.

  CVE-2024-44155

• Security

  A malicious app with root privileges may be able to access keyboard input and location information without user consent

  A permissions issue was addressed with additional restrictions.

  CVE-2024-44123

• Wi-Fi

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

  The issue was addressed with improved memory handling.

  CVE-2024-44227

• Accessibility

  An attacker with physical access may be able to use Siri to access sensitive user data

  This issue was addressed through improved state management.

  CVE-2024-40840

• Accessibility

  An attacker may be able to see recent photos without authentication in Assistive Access

  This issue was addressed by restricting options offered on a locked device.

  CVE-2024-40852

• Core Bluetooth

  A malicious Bluetooth input device may bypass pairing

  This issue was addressed through improved state management.

  CVE-2024-44124

• FileProvider

  A local user may be able to leak sensitive user information

  The issue was addressed with improved checks.

  CVE-2024-54469

• FileProvider

  An app may be able to access sensitive user data

  This issue was addressed with improved validation of symlinks.

  CVE-2024-44131

• Game Center

  An app may be able to access user-sensitive data

  A file access issue was addressed with improved input validation.

  CVE-2024-40850

• Mail Accounts

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

  A privacy issue was addressed with improved private data redaction for log entries.

  CVE-2024-40791

• Passwords

  Password autofill may fill in passwords after failing authentication

  A permissions issue was addressed by removing vulnerable code and adding additional checks.

  CVE-2024-44217

• Safari Private Browsing

  Private Browsing tabs may be accessed without authentication

  An authentication issue was addressed with improved state management.

  CVE-2024-44202

• Safari Private Browsing

  Private Browsing tabs may be accessed without authentication

  This issue was addressed through improved state management.

  CVE-2024-44127

• Sandbox

  An app may be able to leak sensitive user information

  This issue was addressed with improved data protection.

  CVE-2024-40863

• Sidecar

  An attacker with physical access to a macOS device with Sidecar enabled may be able to bypass the Lock Screen

  This issue was addressed through improved state management.

  CVE-2024-44145

• Siri

  An attacker with physical access to a device may be able to read contact numbers from the lock screen

  This issue was addressed by restricting options offered on a locked device.

  CVE-2024-44179

• Siri

  An attacker with physical access may be able to access contacts from the lock screen

  The issue was addressed with improved checks.

  CVE-2024-44139 CVE-2024-44180

• Siri

  An app may be able to access user-sensitive data

  A privacy issue was addressed by moving sensitive data to a more secure location.

  CVE-2024-44170

• TCC

  An app may be able to trick a user into granting access to photos from the user's photo library

  A clickjacking issue was addressed with improved out-of-process view handling.

  CVE-2024-54558

• Transparency

  An app may be able to access user-sensitive data

  A permissions issue was addressed with additional restrictions.

  CVE-2024-44184

• WebKit

  A malicious website may exfiltrate data cross-origin

  A cookie management issue was addressed with improved state management.

  CVE-2024-54467

• WebKit

  A malicious website may exfiltrate data cross-origin

  A cross-origin issue existed with "iframe" elements. This was addressed with improved tracking of security origins.

  CVE-2024-44187

• ARKit

  Processing a maliciously crafted file may lead to heap corruption

  The issue was addressed with improved checks.

  CVE-2024-44126

• Cellular

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

  This issue was addressed through improved state management.

  CVE-2024-27874

• ImageIO

  Processing a maliciously crafted file may lead to unexpected app termination

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

  CVE-2024-27880

• ImageIO

  Processing an image may lead to a denial-of-service

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

  CVE-2024-44176

• IOSurfaceAccelerator

  An app may be able to cause unexpected system termination

  The issue was addressed with improved memory handling.

  CVE-2024-44169

• libxml2

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

  An integer overflow was addressed through improved input validation.

  CVE-2024-44198

• mDNSResponder

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

  A logic error was addressed with improved error handling.

  CVE-2024-44183

• Model I/O

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

  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-2023-5841

• SceneKit

  Processing a maliciously crafted file may lead to unexpected app termination

  A buffer overflow was addressed with improved size validation.

  CVE-2024-44144

• UIKit

  An attacker may be able to cause unexpected app termination

  The issue was addressed with improved bounds checks.

  CVE-2024-27879

• WebKit

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

  The issue was addressed with improved checks.

  CVE-2024-44192

• Accessibility

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

  This issue was addressed with improved data protection.

  CVE-2024-40830

• Accessibility

  An attacker with physical access to a locked device may be able to Control Nearby Devices via accessibility features

  This issue was addressed through improved state management.

  CVE-2024-44171

• Compression

  Unpacking a maliciously crafted archive may allow an attacker to write arbitrary files

  A race condition was addressed with improved locking.

  CVE-2024-27876

• Control Center

  An app may be able to record the screen without an indicator

  The issue was addressed with improved checks.

  CVE-2024-27869

• Kernel

  Network traffic may leak outside a VPN tunnel

  A logic issue was addressed with improved checks.

  CVE-2024-44165

• Kernel

  An app may gain unauthorized access to Bluetooth

  This issue was addressed through improved state management.

  CVE-2024-44191

• LaunchServices

  A malicious app may be able to modify other apps without having App Management permission

  A logic issue was addressed with improved checks.

  CVE-2024-54560

• NetworkExtension

  An app may gain unauthorized access to Local Network

  This issue was addressed through improved state management.

  CVE-2024-44147

• Notes

  An app may be able to overwrite arbitrary files

  This issue was addressed by removing the vulnerable code.

  CVE-2024-44167

• Printing

  An unencrypted document may be written to a temporary file when using print preview

  A privacy issue was addressed with improved handling of files.

  CVE-2024-40826

• Siri

  An attacker may be able to use Siri to enable Auto-Answer Calls

  This issue was addressed by restricting options offered on a locked device.

  CVE-2024-40853

• WebKit

  Processing maliciously crafted web content may lead to universal cross site scripting

  This issue was addressed through improved state management.

  CVE-2024-40857

• Wi-Fi

  An attacker may be able to force a device to disconnect from a secure network

  An integrity issue was addressed with Beacon Protection.

  CVE-2024-40856

iOS 18 Security Release History

iOS 18 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