Found aImportant vulnerabilitiesNintendo recommends that all users Perform switch firmware update 1which was launched last week because Fixed this security vulnerability.
The Nintendo Switch update was released almost simultaneously with the September 10th Nintendo Switch 2 update and brings the console’s system software to Version 23.0.0tweaked various aspects, and also corrected a rather serious issue whose details have emerged in recent days.
Regardless, most users have probably already performed the update, considering it’s been out for almost a week, but if you haven’t done so yet, know that this is an important update that goes beyond any “stability” improvements.
QR code problem
According to reports from various sources, the system update fixes a vulnerability that was discovered and linked to “Send to smartphone” functionwhich allows you to generate a QR code that can be scanned with your smartphone to transfer screenshots, recordings, and data.
Obviously, if someone else Scan the QR code Before the owner user can connect another device to the switch and use that connection to execute unauthorized code on the console or steal information stored on it.
Nintendo launches new Switch 2, Switch and Switch Lite bundles, coming to Europe in October
This puts account data stored on the Nintendo Switch at risk, which should prompt anyone to perform the 23.0.0 system update as soon as possible to remedy this flaw.
It appears that the vulnerability does not affect the Nintendo Switch 2. The issue is registered as CVE-2026-82079, “Inventory Buffer Overflow Vulnerability.” An attacker can execute code as long as he is within the range of the wireless network.
The same issue affects Mario Kart Live: Home Circuit, a toy set that also uses a QR code system to be sent to smartphones, and can be abused in the same way.
