CVE-2016-6663

N/A

Published: December 13, 2016 at 09:00 PM UTC

Updated: June 17, 2026 at 12:51 AM UTC

4 products affected across 3 vendorsMySQL ServerMariaDBPercona Server

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Severity

N/A

Exploit prediction

EPSS 4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MariaDB · Mariadbnpm

95%

10.0.0 ≤ v < 10.0.2810.1.0 ≤ v < 10.1.185.5.20 ≤ v < 5.5.52

Affected range stops below 10.0.28, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.1.18, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.5.52, so it looks safe — our inference, not a vendor statement

MySQL Server · Oraclenpm

95%

5.5.0 ≤ v ≤ 5.5.525.6.0 ≤ v ≤ 5.6.335.7.0 ≤ v ≤ 5.7.158.0

Percona Server · Percona

95%

5.5 ≤ v < 5.5.51-38.25.6 ≤ v < 5.6.32-78.15.7 ≤ v < 5.7.14-8

Affected range stops below 5.5.51-38.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.6.32-78.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.7.14-8, so it looks safe — our inference, not a vendor statement

Xtradb Cluster · Percona

95%

5.5 ≤ v < 5.5.41-37.05.6 ≤ v < 5.6.32-25.175.7 ≤ v < 5.7.14-26.17

Affected range stops below 5.5.41-37.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.6.32-25.17, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.7.14-26.17, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references