Is CVE-2016-6664 actively exploited?

CVE-2016-6664 has no public evidence of in-the-wild exploitation as of 2025-04-12.

What is the CVSS score for CVE-2016-6664?

CVE-2016-6664 has a CVSS score of 7 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2016-6664?

Patch guidance is available from oracle security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2016-6664.

Fix CVE-2016-6664 - HIGH oracle mysql

Q: Which products are affected by CVE-2016-6664?

12 products: oracle mysql, oracle mysql, oracle mysql, mariadb mariadb, mariadb mariadb, and 7 more.

Description

mysqld_safe in Oracle MySQL through 5.5.51, 5.6.x through 5.6.32, and 5.7.x through 5.7.14; MariaDB; 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, when using file-based logging, allows local users with access to the mysql account to gain root privileges via a symlink attack on error logs and possibly other files.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: high
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-59

Metadata

Primary Vendor: ORACLE
Published: 12/13/2016
Last Modified: 4/12/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

oracle : mysqloracle : mysqloracle : mysqlmariadb : mariadbmariadb : mariadbmariadb : mariadbpercona : percona_serverpercona : percona_serverpercona : percona_serverpercona : xtradb_clusterpercona : xtradb_clusterpercona : xtradb_cluster

Remediation Guidance

Executive Summary

Cite this page

CVE-2016-6664. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2016-6664

View on NIST NVD

CVE-2016-6664 vulnerability