Description
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2016-6664. Reason: This candidate is a reservation duplicate of CVE-2016-6664. Notes: All CVE users should reference CVE-2016-6664 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | mariadb-10.0 | No fix yet | — |
| Ubuntu 14.04 LTS | mysql-5.5 | 5.5.52-0ubuntu0.14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | mariadb +7 | 1:5.5.56-2.el7 | RHSA-2017:2192 |
| RHEL 3 | rh-mariadb100-mariadb +8 | 1:10.0.33-3.el6 | RHSA-2018:0279 |
| RHEL 3 | rh-mariadb101-galera | 25.3.12-12.el6 | RHSA-2018:0574 |
| RHEL 3 | rh-mariadb101-mariadb +9 | 1:10.1.29-3.el6 | RHSA-2018:0574 |
| RHEL 2 | mysql55-mysql +5 | 5.5.52-1.el6 | RHSA-2016:2130 |
| RHEL 2 | rh-mysql56-mysql +7 | 5.6.34-2.el6 | RHSA-2016:2749 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | mariadb +7 | 1:5.5.56-2.el7 | ELSA-2017-2192 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- MySQL / MariaDB / PerconaDB 5.5.x/5.6.x/5.7.x - 'root' System User Privilege Escalation EDB-40679 · local · Nov 1, 2016
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 7
- WID-SEC-2026-3894 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 13, 2026
- RHSA-2018:0574 Red Hat Security Advisory: rh-mariadb101-mariadb and rh-mariadb101-galera security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2018:0279 Red Hat Security Advisory: rh-mariadb100-mariadb security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:2192 Red Hat Security Advisory: mariadb security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2016:2749 Red Hat Security Advisory: rh-mysql56-mysql security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2016:2130 Red Hat Security Advisory: mysql55-mysql security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- ELSA-2017-2192 Moderate: mariadb security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 7, 2017