The jailbreak tool "unc0ver" has now received version 6.0.0, which is compatible with iOS 14.3. Specifically, any device running an iOS version between iOS 11 and iOS 14.3 can currently be jailbroken.
The unc0ver website describes, how the tool has been extensively tested on a range of iOS devices running various software versions, including an iPhone 12 Pro Max running iOS 14.3. According to the unc0ver website, the tool uses "native sandbox exceptions" to ensure security when accessing jailbreak files. Devices still running iOS 14.3 can also be cracked with the latest "unc0ver" update. iPhones running iOS 14.4 are not compatible. Since Apple has stopped signing iOS 14.3, there is no way to downgrade.
iOS 14.3: “unc0ver” uses patched kernel vulnerability
Apple released iOS 14.4 and iPadOS 14.4 in January. Both updates fix kernel and WebKit vulnerabilities affecting all iPhones and iPads running earlier iOS 14 versions. Therefore, the update is highly recommended! According to a recent tweet from Pwn20wnd, an iOS hacker and unc0ver developer, the jailbreaking tool uses an exploit based on the kernel vulnerability patched in iOS 14.4, providing "optimal exploit speed and stability."
Safety notice – please note
If you are not familiar with jailbreaking, you should not under any circumstances attempt to blindly crack your iPhone or iPad. This process completely removes all software-based restrictions. For example, users can install applications outside of the App Store on the device. In addition, practically the entire system can be modified - removing all blocks also voids the warranty and makes the device vulnerable. Consequently, laypeople should avoid jailbreaking, as in this case the damage will be greater than the benefit. (Photo by KanawatVector / Bigstockphoto)