iOS 14.4 and iPadOS 14.4
Released January 26, 2021
Kernel
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)
Impact: A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited.
Description: A race condition was addressed with improved locking.
CVE-2021-1782: an anonymous researcher

Apple is aware of a report that this issue may have been actively exploited.


this issue may have been actively exploited.

https://support.apple.com/en-us/HT212146