$ cve CVE-2016-6664 JSON

CVE-2016-6664 EXPLOIT

7.0

HIGH · CVSS 3.1 · EPSS 3% (pctl 87)

Patch early

A public exploit exists.

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.

Scoring

CVSS	7.0 (HIGH, v3.1)
Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS	2.97% — more likely to be exploited than 87% of all CVEs
Weakness	CWE-59
On CISA KEV	no
Public exploit	yes
Published	2016-12-13
Last modified	2026-06-17

Affected (4)

Vendor	Product
mariadb	mariadb
oracle	mysql
percona	percona server
percona	xtradb cluster

Public exploits

Source	Title	Date
exploit-db	MySQL / MariaDB / PerconaDB 5.5.x/5.6.x/5.7.x - 'root' System User Privilege Escalation	2016-11-01

References

→ the Explorer · watch your stack · NVD