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Apple issues Rapid Security Response for iOS 16.5.1 & macOS 13.4.1

Apple issues a new Rapid Security Response update

Apple has released a Rapid Security Response update for iOS 16.5.1, iPadOS 16.5.1, and macOS Ventura 13.4.1 patching an exploit that was actively striking users.

Apple's Rapid Security Response (RSR) is part of its security updates system. It's designed to quickly address significant vulnerabilities detected in Apple software without waiting for a full update.

When such vulnerabilities are discovered, Apple aims to develop and distribute security updates to protect its users rapidly. The update feature is available on iOS 16.4.1, iPadOS 16.4.1, macOS 13.3.1, and later versions.

According to Apple's security updates page, both of Monday's RSR patches a vulnerability in WebKit for all three operating systems. Apple credits an anonymous researcher with the discovery.


  • Available for: iOS 16.5.1, iPadOS 16.5.1, and macOS Ventura 13.4.1
  • Impact: Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
  • Description: The issue was addressed with improved checks.
  • CVE-2023-37450: an anonymous researcher

Apple devices are configured to implement Rapid Security Responses as the default setting automatically. If needed, users will receive a prompt to restart their device.

To enable "Security Responses & System Files" on an iPhone or iPad, navigate to Settings, then select General, followed by Software Update. From there, access Automatic Updates and ensure the toggle is turned on.

For Mac users, open the Apple menu by clicking on the Apple logo, then select System Settings. In the Settings window, click on General and Software Update, then Automatic Updates, and make sure the toggle is turned on for "Install Security Responses and system files."