CVE-2016-6663
7.0 · HIGHOverview
CVE-2016-6663 is a high-severity vulnerability affecting oracle mysql. It was published on December 13, 2016 and has a CVSS 3.0 base score of 7.0 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Race condition in Oracle MySQL before 5.5.52, 5.6.x before 5.6.33, 5.7.x before 5.7.15, and 8.x before 8.0.1; MariaDB before 5.5.52, 10.0.x before 10.0.28, and 10.1.x before 10.1.18; Percona Server before 5.5.51-38.2, 5.6.x before 5.6.32-78-1, and 5.7.x before 5.7.14-8; and Percona XtraDB Cluster before 5.5.41-37.0, 5.6.x before 5.6.32-25.17, and 5.7.x before 5.7.14-26.17 allows local users with certain permissions to gain privileges by leveraging use of my_copystat by REPAIR TABLE to repair a MyISAM table.
Remediation
Check the references section for vendor advisories and patches from oracle. Update mysql to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| oracle | mysql | 5.5.0 | Affected |
| percona | percona_server | >= 5.5, < 5.5.51-38.2 | Affected |
| percona | xtradb_cluster | >= 5.5, < 5.5.41-37.0 | Affected |
| mariadb | mariadb | >= 5.5.20, < 5.5.52 | Affected |
References
Frequently Asked Questions
What is CVE-2016-6663?
CVE-2016-6663 is a high-severity vulnerability affecting oracle mysql. It was published on December 13, 2016 and has a CVSS 3.0 base score of 7.0 (HIGH).
How severe is CVE-2016-6663?
This vulnerability has a CVSS 3.0 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2016-6663?
Check the references section for vendor advisories and patches from oracle. Update mysql to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2016-6663?
CyberStrike's AI-powered security agents can automatically detect CVE-2016-6663 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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