About the security content of iOS 12.4.3 - Apple Support

About Apple security updates

For our customers’ protection, Apple doesn’t disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

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iOS 12.4.3

Released October 28, 2019

Accounts

Available for: iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad mini 2, iPad mini 3, and iPod touch 6th generation

Impact: AirDrop transfers may be unexpectedly accepted while in Everyone mode

Description: A logic issue was addressed with improved validation.

CVE-2019-8796: Allison Husain of UC Berkeley