June 22, 2026
- usbliter8, a novel BootROM/SecureROM exploit for Apple A12/A13 chips (iPhone XS, iPhone 11, Apple Watch 4/5, HomePod mini), was disclosed with a public PoC — the first unpatchable hardware-level iPhone exploit in six years. It chains a USB-controller hardware bug with a firmware configuration flaw to achieve application-processor boot-chain compromise; physical access plus a Raspberry Pi are required, and there is no software fix. Paradigm Shift writeup, PoC, CyberInsider. · Offensive & Red Team
in Unpatchable iPhone BootROM Exploit Drops as a New Call-Stack Bypass Defeats 2024-Era EDR