Your organization's security team has become aware of a public announcement regarding a zero-day vulnerability in a widely used software that is present in your network's infrastructure. What should be your FIRST course of action to mitigate potential risks associated with this vulnerability?
Immediately disconnect your network from the internet to prevent any possible attack vectors.
Disable the affected software across all systems in your network to prevent potential exploitation.
Review the corresponding vendor announcements and advisories for mitigation strategies until a patch is available.
Wait for an official software patch to be released before taking any preventive actions.