Apple has released security updates for iOS, watchOS, tvOS, and Xcode. Many of the resolved vulnerabilities allow for privilege escalation, remote code execution, and information disclosure. The bug that allowed Siri to read hidden notifications when the phone was locked does not appear to be listed in the iOS security updates bulletin. Also included are fixes for various vulnerabilities in Safari and WebKit that could allow malicious sites to perform interface spoofing, exfiltrate form data, or denial of service attacks.
Source: https://www.bleepingcomputer.com/news/apple/apple-releases-security-updates-for-ios-watchos-tvos-and-xcode/