CVE-2018-3062

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Memcached)....

5.3 MediumFix available

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Memcached). Supported versions that are affected are 5.6.40 and prior, 5.7.22 and prior and 8.0.11 and prior. Difficult to exploit vulnerability allows low privileged attacker with network access via memcached to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

2.96%Up 1.5 points since Apr 14, 2021

What each source reports

NVD Score used 5.3

Record: CVE-2018-3062
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 3.5 LowAV:N/AC:M/Au:S/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-3062
Updated: 2026-11-02

EUVDEUVD-2018-14917 No score

Record: EUVD-2018-14917
Updated: 2026-11-03

GitHub AdvisoriesGHSA-qqg3-x2ww-g9cv 5.3

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Memcached)....

Record: GHSA-qqg3-x2ww-g9cv
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSV 5.3

Record: CVE-2018-3062
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVRHSA-2018:3655 7.7

Red Hat Security Advisory: rh-mysql57-mysql security update

Record: RHSA-2018:3655
CVSS 3.0: 7.7 HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-3062 5.3

Record: UBUNTU-CVE-2018-3062
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUSN-3725-1 No score

mysql-5.5, 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 5.5.61 in Ubuntu 14.04 LTS. Ubuntu 16.04 LTS and Ubuntu 18.04 LTS have been updated to MySQL 5.7.23.

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-5-5-61.html http://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-23.html http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html

Record: USN-3725-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`rh-mysql57-mysql` Red Hat:rhel_software_collections:3::el6 From an advisory covering 64 CVEs	before 0:5.7.24-2.el6	0:5.7.24-2.el6
`rh-mysql57-mysql-common` Red Hat:rhel_software_collections:3::el6 From an advisory covering 64 CVEs	before 0:5.7.24-2.el6	0:5.7.24-2.el6
`rh-mysql57-mysql-config` Red Hat:rhel_software_collections:3::el6 From an advisory covering 64 CVEs	before 0:5.7.24-2.el6	0:5.7.24-2.el6
`rh-mysql57-mysql-debuginfo` Red Hat:rhel_software_collections:3::el6 From an advisory covering 64 CVEs	before 0:5.7.24-2.el6	0:5.7.24-2.el6
`rh-mysql57-mysql-devel` Red Hat:rhel_software_collections:3::el6 From an advisory covering 64 CVEs	before 0:5.7.24-2.el6	0:5.7.24-2.el6
`rh-mysql57-mysql-errmsg` Red Hat:rhel_software_collections:3::el6 From an advisory covering 64 CVEs	before 0:5.7.24-2.el6	0:5.7.24-2.el6
`rh-mysql57-mysql-server` Red Hat:rhel_software_collections:3::el6 From an advisory covering 64 CVEs	before 0:5.7.24-2.el6	0:5.7.24-2.el6
`rh-mysql57-mysql-test` Red Hat:rhel_software_collections:3::el6 From an advisory covering 64 CVEs	before 0:5.7.24-2.el6	0:5.7.24-2.el6
`rh-mysql57-mysql` Red Hat:rhel_software_collections:3::el7 From an advisory covering 64 CVEs	before 0:5.7.24-1.el7	0:5.7.24-1.el7
`rh-mysql57-mysql-common` Red Hat:rhel_software_collections:3::el7 From an advisory covering 64 CVEs	before 0:5.7.24-1.el7	0:5.7.24-1.el7

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Affected packages
Package	Affected	Fixed
`rh-mysql57-mysql-config` Red Hat:rhel_software_collections:3::el7 From an advisory covering 64 CVEs	before 0:5.7.24-1.el7	0:5.7.24-1.el7
`rh-mysql57-mysql-debuginfo` Red Hat:rhel_software_collections:3::el7 From an advisory covering 64 CVEs	before 0:5.7.24-1.el7	0:5.7.24-1.el7
`rh-mysql57-mysql-devel` Red Hat:rhel_software_collections:3::el7 From an advisory covering 64 CVEs	before 0:5.7.24-1.el7	0:5.7.24-1.el7
`rh-mysql57-mysql-errmsg` Red Hat:rhel_software_collections:3::el7 From an advisory covering 64 CVEs	before 0:5.7.24-1.el7	0:5.7.24-1.el7
`rh-mysql57-mysql-server` Red Hat:rhel_software_collections:3::el7 From an advisory covering 64 CVEs	before 0:5.7.24-1.el7	0:5.7.24-1.el7
`rh-mysql57-mysql-test` Red Hat:rhel_software_collections:3::el7 From an advisory covering 64 CVEs	before 0:5.7.24-1.el7	0:5.7.24-1.el7
`mysql-5.7` Ubuntu:16.04:LTS	before 5.7.23-0ubuntu0.16.04.1, plus listed versions 5.7.11-0ubuntu45.7.11-0ubuntu55.7.11-0ubuntu65.7.12-0ubuntu15.7.12-0ubuntu1.1 Show 10 moreShow less 5.7.13-0ubuntu0.16.04.25.7.15-0ubuntu0.16.04.15.7.16-0ubuntu0.16.04.15.7.17-0ubuntu0.16.04.15.7.17-0ubuntu0.16.04.25.7.18-0ubuntu0.16.04.15.7.19-0ubuntu0.16.04.15.7.20-0ubuntu0.16.04.15.7.21-0ubuntu0.16.04.15.7.22-0ubuntu0.16.04.1	5.7.23-0ubuntu0.16.04.1
`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-5.7` Ubuntu:18.04:LTS	before 5.7.23-0ubuntu0.18.04.1, plus listed versions 5.7.19-0ubuntu15.7.20-0ubuntu0.17.10.15.7.20-1ubuntu15.7.21-1ubuntu15.7.22-0ubuntu18.04.1	5.7.23-0ubuntu0.18.04.1
`mysql-5.5` Ubuntu:14.04:LTS From an advisory covering 15 CVEs	before 5.5.61-0ubuntu0.14.04.1, plus listed versions 5.5.32-0ubuntu75.5.34-0ubuntu15.5.34-0ubuntu25.5.35-0ubuntu15.5.35+dfsg-1ubuntu1 Show 18 moreShow less 5.5.37-0ubuntu0.14.04.15.5.38-0ubuntu0.14.04.15.5.40-0ubuntu0.14.04.15.5.41-0ubuntu0.14.04.15.5.43-0ubuntu0.14.04.15.5.44-0ubuntu0.14.04.15.5.46-0ubuntu0.14.04.25.5.47-0ubuntu0.14.04.15.5.49-0ubuntu0.14.04.15.5.50-0ubuntu0.14.04.15.5.52-0ubuntu0.14.04.15.5.53-0ubuntu0.14.04.15.5.54-0ubuntu0.14.04.15.5.55-0ubuntu0.14.04.15.5.57-0ubuntu0.14.04.15.5.58-0ubuntu0.14.04.15.5.59-0ubuntu0.14.04.15.5.60-0ubuntu0.14.04.1	5.5.61-0ubuntu0.14.04.1
`mysql-5.7` Ubuntu:16.04:LTS From an advisory covering 15 CVEs	before 5.7.23-0ubuntu0.16.04.1, plus listed versions 5.7.11-0ubuntu45.7.11-0ubuntu55.7.11-0ubuntu65.7.12-0ubuntu15.7.12-0ubuntu1.1 Show 10 moreShow less 5.7.13-0ubuntu0.16.04.25.7.15-0ubuntu0.16.04.15.7.16-0ubuntu0.16.04.15.7.17-0ubuntu0.16.04.15.7.17-0ubuntu0.16.04.25.7.18-0ubuntu0.16.04.15.7.19-0ubuntu0.16.04.15.7.20-0ubuntu0.16.04.15.7.21-0ubuntu0.16.04.15.7.22-0ubuntu0.16.04.1	5.7.23-0ubuntu0.16.04.1
`mysql-5.7` Ubuntu:18.04:LTS From an advisory covering 15 CVEs	before 5.7.23-0ubuntu0.18.04.1, plus listed versions 5.7.19-0ubuntu15.7.20-0ubuntu0.17.10.15.7.20-1ubuntu15.7.21-1ubuntu15.7.22-0ubuntu18.04.1	5.7.23-0ubuntu0.18.04.1

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-2018-3062 is a medium vulnerability (CVSS 5.3) in Oracle Mysql, published July 18, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.96%, the 87th percentile. Fixed in mysql-5.7 5.7.23-0ubuntu0.16.04.1.

References

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