iOS 16.7.6 Security Update

What iOS 16.7.6 Fixes

iOS 16.7.6 and iPadOS 16.7.6, released March 5, 2024, fixes 19 vulnerabilities in 14 parts of the system, according to Apple's security advisory.

Apple says one of these flaws — CVE-2024-23225 — may already have been exploited. That makes iOS 16.7.6 an update to install now rather than at the weekend.

It has since been superseded: the newest security release for iOS 16 is iOS 16.7.16 and iPadOS 16.7.16, from May 11, 2026, which includes these fixes.

Grouped by us from the impact Apple gives for each fix; the impact lines below are Apple's own.

Exploited Before the Fix

Apple flags a fix as possibly exploited when it has a credible report that the flaw was used against real people before the patch. This one is the reason to update today.

• Kernel Exploited

  An attacker with arbitrary kernel read and write capability may be able to bypass kernel memory protections. Apple is aware of a report that this issue may have been exploited.

  A memory corruption issue was addressed with improved validation.

  CVE-2024-23225

Which Devices Get iOS 16.7.6

Apple lists iOS 16.7.6 and iPadOS 16.7.6 for: iPhone 8, iPhone 8 Plus, iPhone X, iPad 5th generation, iPad Pro 9.7-inch, and iPad Pro 12.9-inch 1st generation.

How to Install iOS 16.7.6

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 16.7.6 there is nothing to do.

Every Fix in iOS 16.7.6

The rest of Apple's advisory — every fix not already listed above, 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.

• ImageIO

  Processing an image may lead to arbitrary code execution

  A buffer overflow issue was addressed with improved memory handling.

  CVE-2024-23286

• Kernel

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

  A memory corruption vulnerability was addressed with improved locking.

  CVE-2024-23265

• libxpc

  An app may be able to break out of its sandbox

  The issue was addressed with improved checks.

  CVE-2024-23278

• UIKit

  An app may be able to break out of its sandbox

  This issue was addressed by removing the vulnerable code.

  CVE-2024-23246

• CoreCrypto

  An attacker may be able to decrypt legacy RSA PKCS#1 v1.5 ciphertexts without having the private key

  A timing side-channel issue was addressed with improvements to constant-time computation in cryptographic functions.

  CVE-2024-23218

• Kernel

  An app may be able to access user-sensitive data

  A race condition was addressed with additional validation.

  CVE-2024-23235

• MediaRemote

  An app may be able to access sensitive user data

  This issue was addressed with improved redaction of sensitive information.

  CVE-2023-28826

• Notes

  An app may be able to access user-sensitive data

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

  CVE-2024-23283

• Share Sheet

  An app may be able to access user-sensitive data

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

  CVE-2024-23231

• Shortcuts

  A shortcut may be able to use sensitive data with certain actions without prompting the user

  The issue was addressed with additional permissions checks.

  CVE-2024-23204 CVE-2024-23203

• Siri

  A person with physical access to a device may be able to use Siri to access private calendar information

  A lock screen issue was addressed with improved state management.

  CVE-2024-23289

• Accessibility

  An app may be able to spoof system notifications and UI

  This issue was addressed with additional entitlement checks.

  CVE-2024-23262

• Safari

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

  The issue was addressed with improved checks.

  CVE-2024-23259

• ImageIO

  Processing an image may result in disclosure of process memory

  The issue was addressed with improved memory handling.

  CVE-2024-23257

• Metal

  An application may be able to read restricted memory

  A validation issue was addressed with improved input sanitization.

  CVE-2024-23264

• WebKit

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

  A logic issue was addressed with improved state management.

  CVE-2024-23284

• WebKit

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

  A logic issue was addressed with improved validation.

  CVE-2024-23263

iOS 16 Security Release History

iOS 16.7.6 in context: the security releases Apple has published for iOS 16, 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