A newly published jailbreak called ns2jb has been reported to allow software-only compromise of retail Nintendo Switch 2 systems.
The exploit was created by developer pepsipu and verified by security researcher Gezine, who reviewed the public code repository and spoke with the creator. Gezine has previously disclosed a separate universal userland exploit for the platform.
The disclosure arrived just over a year after the console's market debut. Unlike hardware modchip approaches, ns2jb does not require soldering or permanent firmware changes. It is described as a tethered, memory-based exploit that reportedly works on retail hardware running firmware 23.0.1. Because the modification exists only in active memory, restarting the system restores standard behavior, and users must re-trigger the exploit after every boot. Once active, it reportedly provides native code execution with elevated privileges.
AI-Assisted Development and Likely Patch Window
The developer reportedly used OpenAI Codex to accelerate parts of the vulnerability research, reducing work that could otherwise require lengthy manual auditing.
The exploit reportedly enters through the console's backward-compatibility layer by targeting the original Switch version of SmileBASIC. Now that the attack vector has been publicly identified, Nintendo may respond by removing the affected application from the eShop and releasing a firmware update.
Demonstrated Capabilities
In a proof of concept, pepsipu modified Mario Kart World to add custom playable characters, including Peter Griffin, Hatsune Miku, Cinnamoroll, and Red from Angry Birds. More broadly, native code execution could give users and developers access to software environments, save states, and peripheral interfaces on the handheld.
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