Great news for the jailbreak world. Hacker Linus Haynes has shared a video showing an untethered jailbreak on the iPhone 12 Pro Max running iOS 14.5.1.
So it may be helpful to jailbreak devices running iOS 14.5.1 and lower versions. Hacker Linus Henze has listed the exploits CVE-2021-30740, CVE-2021-30768, CVE-2021-30769, CVE-2021-30770, and CVE-2021-30773, which he says were used in this demo.
He hopes to release the exploit to the public on October 21 (open source).
Semi-untethered, requiring a user to re-jailbreak through an application in order to activate jailbreak. Includes Unc0ver and Taurine Jailbreaks.
Also see, How to jailbreak iOS 15?
Untethered jailbreak is different from semi-untethered Jailbreak in that it does not need to be jailbroken again after rebooting the device. The jailbroken status of the device remains the same even after rebooting, allowing users to enjoy uninterrupted jailbreak status on their iOS device.
If this exploitation can be used by jailbreak teams of unc0ver and Taurine we can hope an online jailbreak tool for iOS 14.5.1.