iOS 18.1 Security Update

What iOS 18.1 Fixes

iOS 18.1 and iPadOS 18.1, released October 28, 2024, fixes 44 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 18.1 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It has since been superseded: the newest security release for iOS 18 is iOS 18.7.11 and iPadOS 18.7.11, from October 26, 2026, which includes these fixes.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 18.1

Apple lists iOS 18.1 and iPadOS 18.1 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 18.1

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 18.1 there is nothing to do.

Every Fix in iOS 18.1

All 44 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.

• IOMobileFrameBuffer

  An attacker may be able to cause unexpected system termination or arbitrary code execution in DCP firmware

  The issue was addressed with improved bounds checks.

  CVE-2024-44299 CVE-2024-44241 CVE-2024-44242

• IOSurface

  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-2024-44285

• iTunes

  A remote attacker may be able to break out of Web Content sandbox

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

  CVE-2024-40867

• Pro Res

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

  The issue was addressed with improved memory handling.

  CVE-2024-44277

• Siri

  A sandboxed app may be able to access sensitive user data in system logs

  An information disclosure issue was addressed with improved private data redaction for log entries.

  CVE-2024-44278

• Accessibility

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

  The issue was addressed with improved authentication.

  CVE-2024-44274

• Calendar

  An attacker with access to calendar data could also read reminders

  A path handling issue was addressed with improved logic.

  CVE-2024-54535

• CoreMedia Playback

  A malicious app may be able to access private information

  This issue was addressed with improved handling of symlinks.

  CVE-2024-44273

• Kernel

  An app may be able to leak sensitive kernel state

  An information disclosure issue was addressed with improved private data redaction for log entries.

  CVE-2024-44239

• Safari Private Browsing

  Private browsing may leak some browsing history

  An information leakage was addressed with additional validation.

  CVE-2024-44229

• Shortcuts

  An app may be able to access sensitive user data

  This issue was addressed with improved redaction of sensitive information.

  CVE-2024-44254

• Siri

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

  A logic issue was addressed with improved checks.

  CVE-2024-54470

• Siri

  An app may be able to access sensitive user data

  This issue was addressed with improved redaction of sensitive information.

  CVE-2024-44194

• Siri

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

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

  CVE-2024-40851

• Siri

  An app may be able to access user-sensitive data

  A logic issue was addressed with improved state management.

  CVE-2024-44263

• Siri

  An app may be able to read sensitive location information

  This issue was addressed with improved redaction of sensitive information.

  CVE-2024-44200

• Spotlight

  An attacker may be able to view restricted content from the lock screen

  This issue was addressed through improved state management.

  CVE-2024-44251

• Spotlight

  An attacker may be able to view restricted content from the lock screen

  The issue was addressed with improved checks.

  CVE-2024-44235

• VoiceOver

  An attacker may be able to view restricted content from the lock screen

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

  CVE-2024-44261

• Weather

  An app may be able to determine a user’s current location

  This issue was addressed with improved redaction of sensitive information.

  CVE-2024-44290

• WidgetKit

  A user may be able to view restricted content from the lock screen

  This issue was addressed through improved state management.

  CVE-2024-54556

• AppleAVD

  Parsing a maliciously crafted video file may lead to unexpected system termination

  The issue was addressed with improved bounds checks.

  CVE-2024-44232 CVE-2024-44233 CVE-2024-44234

• GPU Drivers

  An app may be able to cause unexpected system termination

  A memory initialization issue was addressed with improved memory handling.

  CVE-2024-40854

• ImageIO

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

  The issue was addressed with improved bounds checks.

  CVE-2024-44297

• IOMobileFrameBuffer

  An app may be able to corrupt coprocessor memory

  The issue was addressed with improved bounds checks.

  CVE-2024-44238

• libarchive

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

  The issue was addressed with improved memory handling.

  CVE-2024-44201

• SceneKit

  Processing a maliciously crafted file may lead to heap corruption

  This issue was addressed with improved checks.

  CVE-2024-44218

• Security

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

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

  CVE-2024-54538

• WebKit

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

  A memory corruption issue was addressed with improved input validation.

  CVE-2024-44244

• App Support

  A malicious app may be able to run arbitrary shortcuts without user consent

  A path handling issue was addressed with improved logic.

  CVE-2024-44255

• CoreText

  Processing a maliciously crafted font may result in the disclosure of process memory

  The issue was addressed with improved checks.

  CVE-2024-44240 CVE-2024-44302

• Foundation

  Parsing a file may lead to disclosure of user information

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

  CVE-2024-44282

• ImageIO

  Processing an image may result in disclosure of process memory

  This issue was addressed with improved checks.

  CVE-2024-44215

• Managed Configuration

  Restoring a maliciously crafted backup file may lead to modification of protected system files

  This issue was addressed with improved handling of symlinks.

  CVE-2024-44258

• MobileBackup

  Restoring a maliciously crafted backup file may lead to modification of protected system files

  A logic issue was addressed with improved file handling.

  CVE-2024-44252

• Safari Downloads

  An attacker may be able to misuse a trust relationship to download malicious content

  This issue was addressed through improved state management.

  CVE-2024-44259

• Shortcuts

  A malicious app may use shortcuts to access restricted files

  A logic issue was addressed with improved checks.

  CVE-2024-44269

• WebKit

  Cookies belonging to one origin may be sent to another origin

  A cookie management issue was addressed with improved state management.

  CVE-2024-44212

• WebKit

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

  The issue was addressed with improved checks.

  CVE-2024-44296

iOS 18 Security Release History

iOS 18.1 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