From the security notification email: Unity has identified a Remote Code Execution flaw in the Editor and we’re rolling out a critical security patch to remedi

From the security notification email: Unity has identified a Remote Code Execution flaw in the Editor and we’re rolling out a critical security patch to remediate this issue. You can select your Unity version and find the appropriate patch with instructions at https://unity3d.com/security https://unity3d.com/security. As a part of our commitment to Responsible Disclosure, we will release more details about the vulnerability once all of our users have been given time to patch. If you have any questions, please don’t hesitate to contact our Customer Service team at support@unity3d.com.