iOS 15.8.7 Security Update

What iOS 15.8.7 Fixes

iOS 15.8.7 and iPadOS 15.8.7, released March 11, 2026, fixes 4 vulnerabilities in 2 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 15.8.7 a routine security update: worth installing soon, not an emergency.

It has since been superseded: the newest security release for iOS 15 is iOS 15.8.8 and iPadOS 15.8.8, from May 11, 2026, which includes these fixes.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.

Which Devices Get iOS 15.8.7

Apple lists iOS 15.8.7 and iPadOS 15.8.7 for: iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation).

How to Install iOS 15.8.7

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 15.8.7 there is nothing to do.

Every Fix in iOS 15.8.7

All 4 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.

• Kernel

  An app may be able to execute arbitrary code with kernel privileges. This fix associated with the Coruna exploit was shipped in iOS 17 on September 18, 2023. This update brings that fix to devices that cannot update to the latest iOS version.

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

  CVE-2023-41974

• WebKit

  Processing maliciously crafted web content may lead to arbitrary code execution. This fix associated with the Coruna exploit was shipped in iOS 17.3 on January 22, 2024. This update brings that fix to devices that cannot update to the latest iOS version.

  A type confusion issue was addressed with improved checks.

  CVE-2024-23222

• WebKit

  Processing maliciously crafted web content may lead to memory corruption. This fix associated with the Coruna exploit was shipped in iOS 16.6 on July 24, 2023. This update brings that fix to devices that cannot update to the latest iOS version.

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

  CVE-2023-43000

• WebKit

  Processing maliciously crafted web content may lead to memory corruption. This fix associated with the Coruna exploit was shipped in iOS 17.2 on December 11th, 2023. This update brings that fix to devices that cannot update to the latest iOS version.

  The issue was addressed with improved memory handling.

  CVE-2023-43010

iOS 15 Security Release History

iOS 15.8.7 in context: the security releases Apple has published for iOS 15, 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