What's an acceptable timeframe to fix a critical vulnerability?

Web: https://www.reddit.com/r/cybersecurity/comments/11rphzz/whats_an_acceptable_timeframe_to_fix_a_critical/

We're in the midst of a policy discussion at my medium sized company and we noticed, that some vulnerabilities take way to long to be fixed.
We're going of CVE Score and EXPRT Rating of Crowdstrike, what would be, in your opinion, realistic timeframes for critical vulnerabilities to be fixed from time of discovery to remediation?
I put the emphasis on realistic, I know in the ideal fairy tale world we'd be fixing them in around 24 to 48 hours, …

critical critical vulnerability cybersecurity fix vulnerability