Apple has this week, released iOS 12.5.5 for older iPhones, iPod touches and iPads and it includes some fixes for security. This release looks to address some vulnerabilities in WebKi, XNU and CoreGraphics.
It is recommend to update to this releases ASAP, as Apple has said that there are some reports of these exploits being used in the wild.
Devices that are eligble for iOS 12.5.5 are the iPhone 5s, iPhone 6, iPhone 6 Plus, iPod touch 6th gen, iPad Air 1st gen, iPad mini 2 and iPad mini 3.
