Apple has released iOS 14.4.2 for iPhone and iPad models and watchOS 7.3.3 for Apple Watch models. The update brings a security fix for WebKit, a browser engine developed by Apple and primarily used in its Safari Web browser. Apple has said that the WebKit issue may have been deliberately exploited.

source https://gadgets.ndtv.com/mobiles/news/apple-iphone-ipad-watch-14-4-2-7-3-3-update-webkit-security-bug-fixes-2401627#rss-gadgets-all