When it comes to disclosing vulnerabilities, the Project Zero team at Google generally sticks to a hard-and-fast deadline, giving companies 90 days to issue a patch before going public with its findings. There are some rare exceptions, but for the most part, Project Zero sticks to that time frame. As such, Project Zero is making some noise

Source: Hot Hardware – Google Rings Alarm On Windows 10 Zero-Day Exploit After Microsoft Misses Patch Deadline