macOS Sequoia 15.4.1 Security Update

What macOS Sequoia 15.4.1 Fixes

macOS Sequoia 15.4.1, released April 16, 2025, fixes 2 vulnerabilities in 2 parts of the system, according to Apple's security advisory.

Apple says 2 of these flaws — CVE-2025-31200, CVE-2025-31201 — may already have been exploited. That makes macOS Sequoia 15.4.1 an update to install now rather than at the weekend.

It has since been superseded: the newest security release for macOS Sequoia is macOS Sequoia 15.8.2, from October 26, 2026, which includes these fixes.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.

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. These are the reason to update today.

• CoreAudio Exploited

  Processing an audio stream in a maliciously crafted media file may result in code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on iOS.

  A memory corruption issue was addressed with improved bounds checking.

  CVE-2025-31200

• RPAC Exploited

  An attacker with arbitrary read and write capability may be able to bypass Pointer Authentication. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on iOS.

  This issue was addressed by removing the vulnerable code.

  CVE-2025-31201

Which Devices Get macOS Sequoia 15.4.1

Apple lists macOS Sequoia 15.4.1 for: macOS Sequoia.

How to Install macOS Sequoia 15.4.1

On the Mac, open System Settings → General → Software Update. Macs that cannot run the newest macOS are offered the update for their own version there.

Security fixes are cumulative: any later release for the same version includes these as well, so if you are already past macOS Sequoia 15.4.1 there is nothing to do.

Every Fix in macOS Sequoia 15.4.1

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.

macOS Sequoia Security Release History

macOS Sequoia 15.4.1 in context: the security releases Apple has published for macOS Sequoia, 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