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Switch 2 Jailbroken via SmileBasic Exploit!
23 Oct
Summary
- A partial jailbreak grants userland access for homebrew and game modding.
- The exploit uses an integer overflow in the SmileBasic interpreter.
- Nintendo has delisted SmileBasic 4 from the eShop worldwide.
A security researcher has achieved "userland" access on the Switch 2, enabling the execution of homebrew software, game modification, and interaction with system peripherals. This breakthrough exploits an integer overflow flaw within the SmileBasic 4 programming interpreter, discovered by a researcher using OpenAI's Codex to analyze the software. The vulnerability allows for read and write access to system memory, leading to privileged execution.
This exploit is reminiscent of the "smilehax" on the 3DS, which also utilized SmileBasic. In response, Nintendo has since delisted SmileBasic 4 from the Switch eShop worldwide. Although this hack provides only userland access and falls short of kernel-level control, it marks a significant development in Switch 2 security over a year after its release.
While Nintendo's delisting of SmileBasic may slow the exploit's spread, other games are reportedly being investigated for similar vulnerabilities. The exploit currently works on firmware version 23.0.1 but is expected to be patched in future updates, which are necessary for accessing online services and new games. This event highlights an ongoing cycle of security challenges for Nintendo's consoles.
