Yes. All seed banks freeze seeds that are intended for long-term storage, and you can do the same at home.
The key is to start with thoroughly dried seeds (if you saved them from your own plants) and store them in airtight, freeze-proof containers to reduce the risk of seeds absorbing moisture. Keep the seeds in a reliable freezer that maintains consistent temperatures and isn’t opened often.
Seeds begin to die at temperatures above 108°F and are completely sterilized at 140°F (which usually happens in hot compost piles).
However, it only takes consistent high temperatures over 90°F to affect the embryo inside a seed and lessen the chances of germination.
If you want to store seeds long-term, vacuum sealing is the ultimate method of seed preservation. Start with very dry seeds before vacuum sealing them in a plastic bag and storing them in a fridge or freezer (below 40°F).