Skip to main content

Apple releases security update, fixes Meltdown on macOS Sierra and El Capitan

Alongside macOS High Sierra 10.13.3, released today, Apple has also issued Security Update 2018-001 for macOS Sierra and macOS El Capitan.

This update also fixes other serious security vulnerabilities, including an issue that could cause an application to run arbitrary code using kernel privileges by exploiting a vulnerability on the IOHIDFamily API. It also patches an issue that could lead to arbitrary code execution when playing a malicious sound file.

The security update is included with macOS High Sierra 10.13.3 and it is also available as a separate security update for users of Sierra on 10.12.6 and El Capitan on 10.11.6. Check the Mac App Store for the updates.


Check out 9to5Mac on YouTube for more Apple news:

FTC: We use income earning auto affiliate links. More.

You’re reading 9to5Mac — experts who break news about Apple and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Mac on Twitter, Facebook, and LinkedIn to stay in the loop. Don’t know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel

Manage push notifications

notification icon
We would like to show you notifications for the latest news and updates.
notification icon
You are subscribed to notifications
notification icon
We would like to show you notifications for the latest news and updates.
notification icon
You are subscribed to notifications