CVE-2016-6663
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…
Does this matter?
A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 4.3%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
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.
- CVSS 3.0
- 7.0 HIGHCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.31% probability · 91th percentile
- Public exploits
- 1 in Exploit-DB · first 1 November 2016
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- oracle/mysql · percona/percona server · percona/xtradb cluster · mariadb/mariadb
- Source
- cve@mitre.org
EPSS 4.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://rhn.redhat.com/errata/RHSA-2016-2130.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2131.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2595.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2749.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2927.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2928.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0184.htmlThird Party Advisory
- http://seclists.org/fulldisclosure/2016/Nov/4Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/25/4Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/92911Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/93614Third Party Advisory, VDB Entry
- https://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-52.htmlIssue Tracking, Vendor Advisory
- https://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-33.htmlIssue Tracking, Vendor Advisory
- https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-15.htmlIssue Tracking, Vendor Advisory
- https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-1.htmlIssue Tracking, Vendor Advisory
- https://github.com/MariaDB/server/commit/347eeefbfc658c8531878218487d729f4e020805Issue Tracking, Patch, Third Party Advisory
- https://github.com/mysql/mysql-server/commit/4e5473862e6852b0f3802b0cd0c6fa10b5253291Issue Tracking, Patch, Third Party Advisory
- https://legalhackers.com/advisories/MySQL-Maria-Percona-PrivEscRace-CVE-2016-6663-5616-Exploit.htmlExploit, Third Party Advisory
- https://mariadb.com/kb/en/mariadb/mariadb-10028-release-notes/Release Notes, Vendor Advisory
- https://mariadb.com/kb/en/mariadb/mariadb-10118-release-notes/Release Notes, Vendor Advisory
- https://mariadb.com/kb/en/mariadb/mariadb-5552-release-notes/Release Notes, Vendor Advisory
- https://www.exploit-db.com/exploits/40678/Exploit, Third Party Advisory, VDB Entry
- https://www.percona.com/blog/2016/11/02/percona-responds-to-cve-2016-6663-and-cve-2016-6664/Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2130.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2131.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2595.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2749.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2927.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2928.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.