Someone found a security vulnerability in Unity starting at version 2017.1 all the way up to now. It was critical enough that Unity sent everyone an email about it and coordinated with various other tech companies to remediate its potential effects. One should probably update their Unity if one is planning on using it this weekend.

https://unity.com/security/sept-2025-01

https://flatt.tech/research/posts/arbitrary-code-execution-in-unity-runtime/