About the security content of Safari 16.6.1

This document describes the security content of Safari 16.6.1.

About Apple security updates

For our customers’ protection, Apple doesn’t disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security releases page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

For more information about security, see the Apple Product Security page.

Safari 16.6.1

Released September 21, 2023

WebKit

Available for: macOS Big Sur and Monterey

Impact: Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.

Description: The issue was addressed with improved checks.

WebKit Bugzilla: 261544

CVE-2023-41993: Bill Marczak of The Citizen Lab at The University of Toronto’s Munk School and Maddie Stone of Google’s Threat Analysis Group

Published Date: December 06, 2023