Vulnerability Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oracle | Mysql Cluster | >= 7.6.0, <= 7.6.32 |
| Oracle | Mysql Server | >= 8.0.0, <= 8.0.40 |
Related Weaknesses (CWE)
References
- https://www.oracle.com/security-alerts/cpujan2025.htmlVendor Advisory
- https://security.netapp.com/advisory/ntap-20250131-0004/
FAQ
What is CVE-2025-21518?
CVE-2025-21518 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. Easily explo...
How severe is CVE-2025-21518?
CVE-2025-21518 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21518?
Check the references section above for vendor advisories and patch information. Affected products include: Oracle Mysql Cluster, Oracle Mysql Server.