A vulnerability exists in the Oracle MySQL Server component responsible for thread pooling. This flaw affects supported versions up to 8.0.39, 8.4.2, and 9.0.1. It allows an unauthenticated 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 7.5, indicating a high severity impact on availability.