Here is the short answer: If you bought it at launch (March 2017), it is likely unpatched.
Disclaimer: This information is for educational purposes regarding hardware security. Modifying your Switch may void your warranty and violate Nintendo’s terms of service. Always make a NAND backup before attempting any modifications. is my switch patched
Look on the bottom edge of your console (next to the USB-C port) or go to System Settings > System > Serial Information . Here is the short answer: If you bought
