Fixing a vulnerability can take different amounts of time depending on various factors. These factors include how severe the vulnerability is, how complicated the affected system is, and how efficient the organization responsible for the software or system is. Generally, reliable software vendors and organizations try to release patches for serious vulnerabilities as soon as possible. However, it can take a few days to several weeks to implement the patch due to internal procedures, testing, and coordination needed to ensure it works and doesn’t cause any new issues.