Apple released security updates for iOS, macOS, Safari, tvOS, iCloud, and watchOS. With these releases, Apple fixed 67 unique vulnerabilities with many of these vulnerabilities being shared over multiple platforms. Many could allow attackers to perform remote code execution attacks. The most critical of the vulnerabilities would allow an attacker to execute almost any command they wish on the affected device. It is strongly advised that you upgrade any affected Apple devices and operating systems as soon as possible. For a full list of vulnerabilities for each Apple product, you can consult the table below.
Source: https://www.bleepingcomputer.com/news/apple/apple-ios-10-3-2-and-other-core-os-security-updates-released/