iOS 15.8.4
このアップデートには重要なセキュリティ修正が含まれ、すべてのユーザに推奨されます。

Appleソフトウェア・アップデートのセキュリティコンテンツについては、以下のWebサイトをご覧ください: https://support.apple.com/ja-jp/HT201222

iPadOS 15.8.4
このアップデートには重要なセキュリティ修正が含まれ、すべてのユーザに推奨されます。

Appleソフトウェアアップデートのセキュリティコンテンツについては、以下のWebサイトをご覧ください: https://support.apple.com/ja-jp/HT201222

iOS 15.8.4 and iPadOS 15.8.4
Released March 31, 2025

-Accessibility
Available 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)
Impact: A physical attack may disable USB Restricted Mode on a locked device. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.
Description: An authorization issue was addressed with improved state management.
CVE-2025-24200: Bill Marczak of The Citizen Lab at The University of Toronto’s Munk School

- WebKit
Available 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)
Impact: Maliciously crafted web content may be able to break out of Web Content sandbox. This is a supplementary fix for an attack that was blocked in iOS 17.2. (Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 17.2.)
Description: An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions.
WebKit Bugzilla: 285858
CVE-2025-24201: Apple