Last week, Zheng tweeted:
Good~A zero-day bug survived in the iOS 11.3 update~~~
He later following up with:
kernel bug survived, too~~~
These two vulnerabilities could be key in developing a jailbreak for the iOS 11.3 software update. Unfortunately, despite demonstrating a jailbreak of iOS 11 in the past, Zheng did not make the jailbreak available to the public.
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