A vulnerability in Oracle MySQL Server's Optimizer component affects multiple supported versions including 8.0.0-8.0.41, 8.4.0-8.4.4, and 9.0.0-9.2.0. This flaw allows a high-privileged attacker with network access to cause a denial of service by hanging or crashing the MySQL Server. The vulnerability has a CVSS 3.1 base score of 4.9, indicating a medium severity impact focused on availability.