About the security content of watchOS 4.2.3
This document describes the security content of watchOS 4.2.3.
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 updates page.
Apple security documents reference vulnerabilities by CVE-ID when possible.
Available for: All Apple Watch models
Impact: Processing a maliciously crafted string may lead to heap corruption
Description: A memory corruption issue was addressed through improved input validation.
CVE-2018-4124: an anonymous researcher
Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.