- November 10, 2026
- Updated: November 10, 2026 at 10:48 AM
Nintendo has updated the Switch 2 to system version 23.5.0, and homebrew reports say the patch shuts down the ns2jb jailbreak.
That exploit, built by Sammy “Pepsipu” Hajhamid, was software-only and used the backward-compatible Nintendo eShop app SmileBASIC 4 as a two-step way in. First came a 32-bit integer overflow, then a filesystem buffer overflow, which together made it possible to run arbitrary native code in userland.
Nintendo Switch OnlineDownload
ns2jb opened the door to homebrew apps, game mods, save backups, software reverse engineering, and peripheral access through MMIO. It still stopped short of full kernel control, though, and it never stuck permanently. The jailbreak was tethered and temporary, so after every reboot you had to run it again. Pepsipu’s demo was a modded Mario Kart World with Peter Griffin, Hatsune Miku, and Cinnamoroll dropped into the mix.
For people who keep up with Switch 2 homebrew, ns2jb was a big early step. Now OatmealDome says version 23.5.0 closes that route again. That leaves the SmileBASIC 4 and Civilization VII exploits stuck with whatever those games can already do, aside from a slim chance that some upcoming cartridge releases could still matter in certain setups.
You can download update 23.5.0 straight from the Switch 2 itself. Nintendo also seems to have pulled SmileBASIC 4 from the eShop.
Keep up with Softonic
Get our latest tech news first, wherever you read.
Emmanuel Bosque covers video games at Softonic: releases, the updates that quietly turn a game into a different one, and an industry that rarely announces its moves in advance. He writes for the person who is going to play, not the person who is going to argue: what you can play today, on which platform, and whether it is worth the download. He is part of Softonic’s editorial team and works daily with AI tools in content production.
Latest from Emmanuel Bosque
- GTA 6 leaks again: possible Leonida map surfaces via Selfridges
- BioWare co-founder says Mass Effect and Dragon Age still have “many stories yet to be told”
- Nintendo confirms <a href="https://myappsplus.com/black-friday-phone-deals-are-here-7-tips-to-get-the-biggest-savings/" title="Black Friday phone deals are here: 7 tips to get the biggest savings”>Black Friday Switch 2 deals: $50 off Mario Kart bundle
- For a Few Dollars More still feels fresh nearly 60 years later
