CVE-2025-50068: Oracle MySQL Cluster Privilege Escalation

CVE-2025-50068 Overview

A vulnerability has been identified in the MySQL Cluster product of Oracle MySQL, specifically affecting the Cluster: General component. This flaw allows a high-privileged attacker with local access to the infrastructure where MySQL Cluster executes to completely compromise the MySQL Cluster installation. The vulnerability is characterized as easily exploitable and can result in a full takeover of the affected MySQL Cluster deployment, impacting confidentiality, integrity, and availability of the database cluster.

Critical Impact
Successful exploitation allows complete takeover of MySQL Cluster, enabling attackers with local access and high privileges to gain full control over the database cluster infrastructure.

Affected Products

Oracle MySQL Cluster versions 8.0.0 through 8.0.42
Oracle MySQL Cluster versions 8.4.0 through 8.4.5
Oracle MySQL Cluster versions 9.0.0 through 9.3.0

Discovery Timeline

July 15, 2025 - CVE-2025-50068 published to NVD
July 24, 2025 - Last updated in NVD database

Technical Details for CVE-2025-50068

Vulnerability Analysis

This vulnerability resides in the Cluster: General component of Oracle MySQL Cluster. The flaw is classified as easily exploitable, requiring only local access to the infrastructure and high-level privileges to successfully compromise the target system. The attack does not require user interaction, making it particularly dangerous in environments where administrative access is shared or where insider threats are a concern.

Upon successful exploitation, an attacker gains complete control over the MySQL Cluster installation, with the ability to read, modify, or delete any data stored in the cluster. The vulnerability affects all three major supported version tracks of MySQL Cluster, spanning versions 8.0.0 through 9.3.0.

Root Cause

The specific technical root cause has not been disclosed by Oracle (NVD-CWE-noinfo). Based on the vulnerability characteristics—local attack vector, high privilege requirement, and complete system compromise potential—the issue likely involves improper access controls or privilege handling within the MySQL Cluster management components that can be abused by authenticated administrators to escalate their capabilities beyond intended boundaries.

Attack Vector

The attack vector is local, meaning the attacker must have direct access to the infrastructure running MySQL Cluster. The exploitation requires high privileges, indicating that standard database users would not be able to exploit this vulnerability directly. The attacker would need administrative or root-level access to the underlying system where MySQL Cluster nodes are deployed.

The attack scenario involves:

Gaining local access to a system hosting MySQL Cluster components
Leveraging existing high-privilege credentials or access rights
Exploiting the vulnerability to achieve complete cluster takeover
Potentially gaining full read/write access to all clustered data and configurations

Technical details regarding the specific exploitation method have not been publicly disclosed by Oracle. For authoritative information, refer to the Oracle Security Alert July 2025.

Detection Methods for CVE-2025-50068

Indicators of Compromise

Unusual administrative activity on MySQL Cluster nodes from unexpected local accounts
Unexpected configuration changes to MySQL Cluster settings or node definitions
Anomalous access patterns to cluster management interfaces or data directories
Suspicious process execution or file modifications in MySQL Cluster installation directories

Detection Strategies

Monitor local authentication logs for unusual privileged account usage on MySQL Cluster hosts
Implement file integrity monitoring on MySQL Cluster binaries and configuration files
Review MySQL Cluster audit logs for unexpected administrative operations
Deploy endpoint detection solutions to identify anomalous behavior on cluster nodes

Monitoring Recommendations

Enable comprehensive logging for all MySQL Cluster management operations
Configure alerts for any cluster configuration modifications or node changes
Monitor system-level events on hosts running MySQL Cluster components
Implement privileged access monitoring for accounts with MySQL Cluster administrative rights

How to Mitigate CVE-2025-50068

Immediate Actions Required

Apply the latest security patches from Oracle's July 2025 Critical Patch Update immediately
Audit all accounts with local administrative access to MySQL Cluster infrastructure
Implement strict access controls to limit privileged access to cluster nodes
Review and restrict network access to MySQL Cluster management interfaces

Patch Information

Oracle has released security patches addressing this vulnerability as part of the July 2025 Critical Patch Update. Organizations running affected versions of MySQL Cluster (8.0.0-8.0.42, 8.4.0-8.4.5, or 9.0.0-9.3.0) should upgrade to the latest patched versions immediately. Detailed patch information is available in the Oracle Security Alert July 2025.

Workarounds

Restrict local access to MySQL Cluster infrastructure to only essential personnel
Implement network segmentation to isolate MySQL Cluster nodes from general network access
Enable multi-factor authentication for all administrative access to cluster hosts
Deploy endpoint detection and response (EDR) solutions on all MySQL Cluster nodes to detect exploitation attempts

bash

# Example: Restrict MySQL Cluster directory permissions
chmod 750 /var/lib/mysql-cluster
chown mysql:mysql /var/lib/mysql-cluster

# Audit current privileged access to cluster nodes
grep -E 'mysql|cluster' /etc/passwd
last | grep -E 'root|mysql'

# Review MySQL Cluster configuration file permissions
ls -la /etc/mysql-cluster.ini