Apple has released iOS 14.5.1 with fixes for two critical WebKit vulnerabilities.
Updates for WatchOS should also be installed.
iOS 12.5.3 was also released to support older devices like iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad mini 2, iPad mini 3, and iPod touch (6th generation).
These vulnerabilities are being actively exploited in the wild. Users should update as soon as possible to avoid potential exploitation.
How to update iOS
iOS 14.5.1 Release Notes
iOS 12.5.3 Release Notes
How to update watchOS
watchOS 7.4.1 Release Notes