Bao Zhen

**Name of the Vulnerable Software and Affected Versions** MySQL Server versions 8.0.19 and prior **Description** The issue is related to insufficient access control in the Server:Group Replication GCS component of Oracle MySQL Server. It can be exploited by a remote attacker to cause a denial of service via the MySQL network protocol. A successful attack can result in the ability to cause a hang or frequently repeatable crash of MySQL Server. **Recommendations** For versions 8.0.19 and prior, update to a version that includes the fix for this issue to prevent exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.