Free CompTIA CySA+ CS0-003 Practice Question

When a zero-day vulnerability is discovered in a critical system, the most crucial action is to implement compensating controls immediately as patches or direct fixes are often not available. These controls can mitigate the risk associated with the vulnerability until a permanent solution is devised. Notifying stakeholders and reconfiguring other security settings are important, but they do not directly mitigate the immediate risk caused by the zero-day vulnerability.