macOS Ventura 13.6.6 Security Update

What macOS Ventura 13.6.6 Fixes

macOS Ventura 13.6.6, released March 25, 2024, fixes 1 vulnerability 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 macOS Ventura 13.6.6 a routine security update: worth installing soon, not an emergency.

It has since been superseded: the newest security release for macOS Ventura is macOS Ventura 13.7.8, from August 20, 2025, which includes these fixes.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 macOS Ventura 13.6.6

Apple lists macOS Ventura 13.6.6 for: macOS Ventura.

How to Install macOS Ventura 13.6.6

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 Ventura 13.6.6 there is nothing to do.

Every Fix in macOS Ventura 13.6.6

All 1 CVE 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.

• CoreMedia

  Processing an image may lead to arbitrary code execution

  An out-of-bounds write issue was addressed with improved input validation.

  CVE-2024-1580

• WebRTC

  Processing an image may lead to arbitrary code execution

  An out-of-bounds write issue was addressed with improved input validation.

  CVE-2024-1580

macOS Ventura Security Release History

macOS Ventura 13.6.6 in context: the security releases Apple has published for macOS Ventura, 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