Whether you have an iPhone 15 or not, install iOS 17.0.3 right now

While we’re still waiting for several new iOS 17 features to arrive, Apple has released iOS 17.0.3 and iPadOS 17.0.3, the third small update for iOS 17 in less than a month. For iPhone 15 Pro owners, this is a must-download. As we previously explained, some users have been experiencing overheating during certain tasks, which Apple has chalked up to some bad app updates as well as a bug in iOS 17, which has been fixed with this update.

Apple’s release notes for iOS 17.0.3 say:

This update provides important bug fixes, security updates, and addresses an issue that may cause iPhone to run warmer than expected.

So if you have an iPhone 15 Pro, grab this update now and make sure your apps are up to date. (Uber and Instagram are notable popular apps that seem to be contributing to the overheating issue and have been recently updated.)

But even if you don’t have the latest iPhone, iOS 17.0.3 is a worthwhile download. There are two security vulnerabilities addressed in this update as well, one of which has been actively exploited against versions of iOS prior to iOS 16.6, which was released in late July. These fixes will also be part of iOS 17.1, which is currently in testing and will likely be released later this month.

Kernel

• Impact: A local attacker may be able to elevate their privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.6.
• Description: The issue was addressed with improved checks.
• CVE-2023-42824

WebRTC

• Impact: A buffer overflow may result in arbitrary code execution
• Description: The issue was addressed by updating to libvpx 1.13.1.
• WebKit Bugzilla: 262365
  CVE-2023-5217

To update your iPhone or iPad, open Settings, tap General, then Software Update. When the update appears, tap Update Now to immediately download and install or Update Tonight to install while you’re sleeping. Find out everything you need to know about iOS 17 in our iOS 17 superguide.