CVE-2024-21129 is a vulnerability in Oracle MySQL Server affecting versions 8.0.37 and prior, and 8.4.0 and prior. It allows a high privileged attacker with network access to cause a denial of service (DoS) by hanging or crashing the MySQL Server. The vulnerability impacts availability but does not affect confidentiality or integrity. Oracle has released patches for this vulnerability as part of its July 2024 Critical Patch Update.