Nintendo Switch 2 Jailbreak Developed With Help From AI

A security researcher has demonstrated a software-only Nintendo Switch 2 jailbreak developed with assistance from OpenAI Codex, highlighting how artificial intelligence can support vulnerability research on modern gaming hardware.

The researcher, known online as pepsipu, published details of the ns2jb exploit, which works on Nintendo Switch 2 firmware version 23.0.1.

According to the developer's original technical report, Codex helped identify and investigate security vulnerabilities, including an integer overflow in the SmileBASIC programming environment.

The researcher also configured a testing setup that allowed AI agents to interact with Nintendo consoles, receive video output, and perform repeated experiments.

After gaining initial code execution, the project progressed to accessing privileged system components, including the console's filesystem module.

To demonstrate the results, Codex helped modify Mario Kart World by introducing unofficial playable characters, including Cinnamoroll and other recognizable figures.

The exploit can support homebrew applications, game modifications, save file backups, and additional security research.

However, ns2jb does not provide complete kernel access or permanent custom firmware. It is a tethered jailbreak, meaning the exploit must be executed again after restarting the console.

The developer has also released the ns2jb source code on GitLab, allowing other researchers to examine the findings.

While the discovery represents an important milestone for the Nintendo Switch 2 homebrew community, it remains an experimental security breakthrough rather than a complete system unlock.