https://www.bleepingcomputer.com/news/security/apple-fixes-numerous-security-vulnerabilities-in-ios-macos-and-more/

Today Apple released updates for their core products that includes iCloud, Safari, macOS Mojave, High Sierra, & Sierra, tvOS 12.1.2, and of course iOS 12.1.3.

Included in these security updates are fixes for numerous code execution, privilege escalations, and information disclosure vulnerabilities. Due to this, if you are the user of any of the above products, you should update them as soon as possible.