APPLE-126604: About the security content of Background Security Improvements for iOS 26.3.1, iPadOS 26.3.1, macOS 26.3.1, and macOS 26.3.2

Published Mar 17, 2026

Updated

Affected Software

1 affected component

Apple About Background Security Improvements

Mar 17, 2026

Advisory Published

via Apple·08:52 PM

Data Sourced

via Apple·08:52 PM

Affected Software

Contains the following vulnerabilities.

APPLE-126604 has been classified with a risk score of 32, indicating a medium severity level.

APPLE-126604 addresses background security improvements relevant to iOS 26.3.1, iPadOS 26.3.1, macOS 26.3.1, and macOS 26.3.2.

To fix APPLE-126604, ensure your devices are updated to iOS 26.3.1, iPadOS 26.3.1, macOS 26.3.1, or macOS 26.3.2.

APPLE-126604 affects users running iOS 26.3.1, iPadOS 26.3.1, macOS 26.3.1, and macOS 26.3.2.

No specific workarounds are recommended for APPLE-126604; updating to the latest software version is the best course of action.