Apple chip flaw opens iPhone jailbreak risk for older models in 2026

Apple chip flaw opens iPhone jailbreak risk for older models in 2026

https://memeburn.com/apple-chip-flaw-opens-iphone-jailbreak-risk-for-older-models-in-2026/

Publish Date: 2026-06-26 13:08:00

Source Domain: memeburn.com

A new unpatchable flaw in Apple chips has opened the door to possible jailbreaks on older iPhones, and this one sits deeper than a normal iOS bug.

The vulnerability, called usbliter8, affects Apple’s BootROM on A12 and A13 chips, according to research published by European offensive cybersecurity company Paradigm Shift. TechCrunch reports that the exploit could help researchers and hacking-tool makers unlock older iPhones if they combine it with other vulnerabilities.

What is the Apple usbliter8 flaw?

Paradigm Shift describes usbliter8 as a BootROM exploit affecting Apple’s A12, S4/S5, and A13 chips. The researchers say the bug involves both a hardware flaw in the USB controller and a firmware configuration issue.

That matters because the BootROM runs before iOS loads. Think of it as the first security guard at the door. If attackers can control that stage, they may gain a powerful starting point before Apple’s normal software protections wake up.

The flaw affects devices such as the iPhone XR, iPhone XS, iPhone 11, iPhone SE 2, some iPads, Apple Watch Series 4 and 5, the first Apple Watch SE, and the HomePod mini, according to 9to5Mac’s device breakdown.

Why Apple can’t just patch it

This is where things get awkward.

Paradigm Shift says the vulnerable code lives in immutable code, meaning Apple can’t simply push out a normal iOS update and erase the flaw. The researchers say moving to newer hardware remains the most effective mitigation.

That doesn’t mean your iPhone 11 becomes useless overnight. It means the underlying chip-level weakness stays there for the life of the device.

Here’s the plain-language version:

This is about physical access, not…

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