CVE-2024-21237 is a vulnerability in Oracle MySQL Server's Group Replication GCS component affecting versions 8.0.39 and prior, 8.4.2 and prior, and 9.0.1 and prior. It allows a high privileged attacker with network access via multiple protocols to cause a partial denial of service (DoS) of the MySQL Server. The vulnerability has a low CVSS score of 2.2, indicating limited impact on availability without confidentiality or integrity compromise. Oracle has released patches for this vulnerability as part of its October 2024 Critical Patch Update.