iOS 18.6 Security Update

What iOS 18.6 Fixes

iOS 18.6 and iPadOS 18.6, released July 29, 2025, fixes 32 vulnerabilities in 17 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 18.6 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It has since been superseded: the newest security release for iOS 18 is iOS 18.7.11 and iPadOS 18.7.11, from October 26, 2026, which includes these fixes.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 18.6

Apple lists iOS 18.6 and iPadOS 18.6 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 18.6

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 18.6 there is nothing to do.

Every Fix in iOS 18.6

All 32 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.

• CFNetwork

  A non-privileged user may be able to modify restricted network settings

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

  CVE-2025-43223

• Accessibility

  Privacy Indicators for microphone or camera access may not be correctly displayed

  The issue was addressed by adding additional logic.

  CVE-2025-43217

• CoreMedia Playback

  An app may be able to access user-sensitive data

  The issue was addressed with additional permissions checks.

  CVE-2025-43230

• WebKit

  Processing maliciously crafted web content may disclose sensitive user information

  This issue was addressed through improved state management.

  CVE-2025-43227

• WebKit

  Visiting a malicious website may lead to address bar spoofing

  The issue was addressed with improved UI.

  CVE-2025-43228

• afclip

  Parsing a file may lead to an unexpected app termination

  The issue was addressed with improved memory handling.

  CVE-2025-43186

• CoreAudio

  Processing a maliciously crafted audio file may lead to memory corruption

  The issue was addressed with improved memory handling.

  CVE-2025-43277

• CoreMedia

  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-2025-43210

• ICU

  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-2025-43209

• Kernel

  An app may be able to cause unexpected system termination

  A double free issue was addressed with improved memory management.

  CVE-2025-43282

• libnetcore

  Processing a file may lead to memory corruption

  This issue was addressed with improved memory handling.

  CVE-2025-43202

• libxml2

  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-2025-7425

• libxslt

  Processing maliciously crafted web content 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-2025-7424

• Metal

  Processing a maliciously crafted texture may lead to unexpected app termination

  Multiple memory corruption issues were addressed with improved input validation.

  CVE-2025-43234

• Model I/O

  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-2025-43224 CVE-2025-43221

• Model I/O

  Processing a maliciously crafted file may lead to unexpected app termination

  An input validation issue was addressed with improved memory handling.

  CVE-2025-31281

• 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 memory corruption

  The issue was addressed with improved memory handling.

  CVE-2025-31278 CVE-2025-31277 CVE-2025-31273

• WebKit

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

  The issue was addressed with improved memory handling.

  CVE-2025-43214 CVE-2025-43213 CVE-2025-43212

• WebKit

  Processing web content may lead to a denial-of-service

  The issue was addressed with improved memory handling.

  CVE-2025-43211

• 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-2025-43216

• WebKit

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

  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-2025-6558

• Accessibility

  Passcode may be read aloud by VoiceOver

  A logic issue was addressed with improved checks.

  CVE-2025-31229

• ImageIO

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

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

  CVE-2025-43226

• Mail Drafts

  Remote content may be loaded even when the 'Load Remote Images' setting is turned off

  This issue was addressed through improved state management.

  CVE-2025-31276

• Mail Drafts

  Forwarding an email could display remote images in Mail in Lockdown Mode

  The issue was resolved by not loading remote images

  CVE-2025-43280

• WebKit

  Processing maliciously crafted web content may disclose internal states of the app

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

  CVE-2025-43265

iOS 18 Security Release History

iOS 18.6 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