Jailbreaking team Unc0ver has released a tool that will jailbreak most versions of iOS from 11 to 13.5; the tool makes use of a 0-day flaw in the iOS kernel
Lily Hay Newman / Wired :
Context & Ripple Effects
This lands mid-arc in the modern jailbreak revival: months earlier, a researcher had released code for what he called a permanent, unpatchable bootrom exploit covering A5-to-A11 iPhones, and the field's history runs back to leaked tools resembling the ones used by forensics firm Cellebrite. What makes the Unc0ver release notable is its breadth — a single kernel 0-day reaching nearly every device still running iOS 11 through 13.5.
The speed of the countermove frames the story: Apple shipped iOS and iPadOS 13.5.1 within about a week, extending the fix across watchOS, tvOS, HomePod, and macOS, and Unc0ver later returned with a fresh jailbreak reaching iOS 14.3 built on another flaw Apple said may have been exploited in the wild.
First-order effects
- Owners of iPhones and iPads on iOS 11 through 13.5 gain one-tap root access without downgrades or hardware requirements, while Apple is immediately forced into an out-of-cycle patch covering not just iOS but watchOS, tvOS, HomePod, and macOS.
Second-order effects
- Every jailbroken device is also a device whose kernel protections have been stripped, which lowers the barrier for forensics and phone-unlocking firms — the same class of buyer that previously obtained Cellebrite-linked cracking tools derived from jailbreak techniques.
Third-order effects
- The episode cements the recurring structure of the platform-security economy: researcher teams surface kernel-level flaws, jailbreaks monetize attention and credibility, and Apple responds with fleet-wide patches — until the next flaw, as the 2021 Unc0ver release showed, restarts the cycle.
The trend: iOS jailbreaking has settled into a persistent arms race where each public kernel exploit forces Apple-wide emergency patches, only to be followed by the next team's release.