For jailbreak communities, it often excites crackers and developers when someone discovers vulnerabilities that can break out new devices and new versions of iOS. Shared by @08Tc3wBB and later verified by security researchers @RazMashat, the tfp0 vulnerability, short for “task for pid 0” (the core task port), was found in Apple’s latest and most outstanding iOS 13.3 firmware update, and the iPhone, including the A13 processor, was affected.
Media reported that the vulnerability also exists in A12 (X) devices, with the maximum iOS 12.4.1 allowed through uncOver and 12.4 with Chimera. The only jailbreak vulnerability currently available for iOS 13 is checkra1n and only available on iPhone X and a7-A11 devices and below.
The @08Tc3wBB has not disclosed details of the vulnerability. Notably, @RazMashat, a security researcher who confirmed the vulnerability, said in a follow-up tweet that the vulnerability had received the attention of trusted hackers, including Chronic and Pwn20wnd. In addition@RazMashat said @08Tc3wBB has not yet decided whether to publicly release the tfp0 error or disclose it to Apple first for a monetary reward.