CVE-2016-5443

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect...

4.7 MediumFix available

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect availability via vectors related to Server: Connection.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: High
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.42%Down 0.6 points since Feb 4, 2022

What each source reports

NVD Score used 4.7

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect availability via vectors related to Server: Connection.

Record: CVE-2016-5443
CVSS 3.0: 4.7 MediumCVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 1.2 LowAV:L/AC:H/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect availability via vectors related to Server: Connection.

Record: CVE-2016-5443
Updated: 2026-11-02

EUVDEUVD-2016-6387 No score

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect availability via vectors related to Server: Connection.

Record: EUVD-2016-6387
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mxm5-9465-fv5w 4.7

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect...

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect availability via vectors related to Server: Connection.

Record: GHSA-mxm5-9465-fv5w
CVSS 3.0: 4.7 MediumCVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSV 4.7

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect availability via vectors related to Server: Connection.

Record: CVE-2016-5443
CVSS 3.0: 4.7 MediumCVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2016-5443 4.7

Unspecified vulnerability in Oracle MySQL 5.7.12 and earlier allows local users to affect availability via vectors related to Server: Connection.

Record: UBUNTU-CVE-2016-5443
CVSS 3.0: 4.7 MediumCVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUSN-3040-1 No score

mysql-5.5, mysql-5.6, mysql-5.7 vulnerabilities

Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues.

MySQL has been updated to 5.5.50 in Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. Ubuntu 15.10 has been updated to MySQL 5.6.31. Ubuntu 16.04 LTS has been updated to MySQL 5.7.13.

In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Please see the following for more information: http://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-50.html http://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-31.html http://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-13.html http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html

Record: USN-3040-1
Updated: 2026-11-02

Affected products

oracle mysql

Affected packages

Affected packages
Package	Affected	Fixed
`mysql-5.7` Ubuntu:16.04:LTS	before 5.7.13-0ubuntu0.16.04.2, plus listed versions 5.7.11-0ubuntu45.7.11-0ubuntu55.7.11-0ubuntu65.7.12-0ubuntu15.7.12-0ubuntu1.1	5.7.13-0ubuntu0.16.04.2
`percona-server-5.6` Ubuntu:16.04:LTS	All versions, plus listed versions 5.6.22-rel71.0-0ubuntu25.6.22-rel71.0-0ubuntu45.6.22-rel71.0-0ubuntu4.1	None known
`percona-xtradb-cluster-5.6` Ubuntu:16.04:LTS	All versions, plus listed versions 5.6.21-25.8-0ubuntu25.6.21-25.8-0ubuntu35.6.21-25.8-0ubuntu3.15.6.21-25.8-0ubuntu3.25.6.34-26.19-0ubuntu0.16.04.15.6.34-26.19-0ubuntu0.16.04.25.6.37-26.21-0ubuntu0.16.04.15.6.37-26.21-0ubuntu0.16.04.2	None known
`mysql-5.5` Ubuntu:14.04:LTS From an advisory covering 17 CVEs	before 5.5.50-0ubuntu0.14.04.1, plus listed versions 5.5.32-0ubuntu75.5.34-0ubuntu15.5.34-0ubuntu25.5.35-0ubuntu15.5.35+dfsg-1ubuntu1 Show 9 moreShow less 5.5.37-0ubuntu0.14.04.15.5.38-0ubuntu0.14.04.15.5.40-0ubuntu0.14.04.15.5.41-0ubuntu0.14.04.15.5.43-0ubuntu0.14.04.15.5.44-0ubuntu0.14.04.15.5.46-0ubuntu0.14.04.25.5.47-0ubuntu0.14.04.15.5.49-0ubuntu0.14.04.1	5.5.50-0ubuntu0.14.04.1
`mysql-5.7` Ubuntu:16.04:LTS From an advisory covering 17 CVEs	before 5.7.13-0ubuntu0.16.04.2, plus listed versions 5.7.11-0ubuntu45.7.11-0ubuntu55.7.11-0ubuntu65.7.12-0ubuntu15.7.12-0ubuntu1.1	5.7.13-0ubuntu0.16.04.2

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-5443 is a medium vulnerability (CVSS 4.7) in Oracle Mysql, published July 20, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. Fixed in mysql-5.7 5.7.13-0ubuntu0.16.04.2.

References

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