iOS 18.7.7 Security Update

What iOS 18.7.7 Fixes

iOS 18.7.7 and iPadOS 18.7.7, released March 24, 2026, fixes 26 vulnerabilities in 20 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 18.7.7 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It has since been superseded: the newest security release for iOS 18 is iOS 18.7.11 and iPadOS 18.7.11, from October 26, 2026, which includes these fixes.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 18.7.7

Apple lists iOS 18.7.7 and iPadOS 18.7.7 for: iPhone XR, iPhone XS, iPhone XS Max, iPhone 11 (all models), iPhone SE (2nd generation), iPhone 12 (all models), iPhone 13 (all models), iPhone SE (3rd generation), iPhone 14 (all models), iPhone 15 (all models), iPhone 16 (all models), iPhone 16e, iPad mini (5th generation - A17 Pro), iPad (7th generation - A16), iPad Air (3rd - 5th generation), iPad Air 11-inch (M2 - M3), iPad Air 13-inch (M2 - M3), iPad Pro 11-inch (1st generation - M4), iPad Pro 12.9-inch (3rd - 6th generation), and iPad Pro 13-inch (M4).

How to Install iOS 18.7.7

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 18.7.7 there is nothing to do.

Every Fix in iOS 18.7.7

All 26 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.

• 802.1X

  An attacker in a privileged network position may be able to intercept network traffic

  An authentication issue was addressed with improved state management.

  CVE-2026-28865

• CoreUtils

  A user in a privileged network position may be able to cause a denial-of-service

  A null pointer dereference was addressed with improved input validation.

  CVE-2026-28886

• Kernel

  An app may be able to disclose kernel memory

  A logging issue was addressed with improved data redaction.

  CVE-2026-28868

• Kernel

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

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

  CVE-2026-20687

• Telephony

  An attacker in a privileged network position may be able to cause a denial-of-service

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

  CVE-2026-28967

• Clipboard

  An app may be able to access sensitive user data

  This issue was addressed with improved validation of symlinks.

  CVE-2026-28866

• curl

  An issue existed in curl which may result in unintentionally sending sensitive information via an incorrect connection

  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-2025-14524

• DeviceLink

  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-2026-28876

• Focus

  An app may be able to access sensitive user data

  A logging issue was addressed with improved data redaction.

  CVE-2026-20668

• iTunes Store

  A user with physical access to an iOS device may be able to bypass Activation Lock

  A path handling issue was addressed with improved validation.

  CVE-2025-43534

• Kernel

  An app may be able to leak sensitive kernel state

  This issue was addressed with improved authentication.

  CVE-2026-28867

• mDNSResponder

  An app may be able to leak sensitive kernel state

  This issue was addressed with improved authentication.

  CVE-2026-28867

• Security

  A local attacker may gain access to user's Keychain items

  This issue was addressed with improved permissions checking.

  CVE-2026-28864

• Security

  A local attacker may be able to modify the state of the Keychain

  The issue was addressed with improved input validation.

  CVE-2026-28860

• WebKit

  Processing maliciously crafted web content may bypass Same Origin Policy

  A cross-origin issue in the Navigation API was addressed with improved input validation.

  CVE-2026-20643

• 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

• WebKit

  Visiting a maliciously crafted website may lead to a cross-site scripting attack

  A logic issue was addressed with improved checks.

  CVE-2026-28871

• AppleKeyStore

  An app may be able to cause unexpected system termination

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

  CVE-2026-20637

• Audio

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

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

  CVE-2026-28879

• ImageIO

  Processing a maliciously crafted file may lead to unexpected app termination

  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-2025-64505

• UIFoundation

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

  A stack overflow was addressed with improved input validation.

  CVE-2026-28852

• Vision

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

  A buffer overflow issue was addressed with improved memory handling.

  CVE-2026-20657

• CoreMedia

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

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

  CVE-2026-20690

• Crash Reporter

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

  A privacy issue was addressed by removing sensitive data.

  CVE-2026-28878

• iCloud

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

  A permissions issue was addressed with additional restrictions.

  CVE-2026-28880

• WebKit

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

  This issue was addressed through improved state management.

  CVE-2026-20665

• WebKit

  A malicious website may be able to access script message handlers intended for other origins

  A logic issue was addressed with improved state management.

  CVE-2026-28861

iOS 18 Security Release History

iOS 18.7.7 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