https://www.bleepingcomputer.com/news/security/apple-releases-security-updates-for-ios-and-icloud-fixes-passcode-bypass/

Apple has released a new round of security updates for iOS 12 and iCloud that resolve numerous vulnerabilities. For iOS, these updates resolve two passcode bypasses and for iCloud there are numerous, including critical, vulnerabilities that were fixed.

Included in this update are also fixes for the charging and WiFi bugs that users of the new iPhone XS have been experiencing.