CVE-2018-3187: Medium severity Oracle MySQL vulnerability
Last updated 25 August 2025
Other sources
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.7.23 and prior and 8.0.12 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data.
External References:
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
— Red Hat
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.7.23 and prior and 8.0.12 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.0 Base Score 5.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H).
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2018-3187?
The severity of CVE-2018-3187 is medium.
Which versions of MySQL Server are affected by CVE-2018-3187?
The affected versions of MySQL Server are 5.7.23 and prior, and 8.0.12 and prior.
What is the vulnerability in MySQL Server identified by CVE-2018-3187?
CVE-2018-3187 refers to a vulnerability in the Optimizer component of Oracle MySQL Server.
How can an attacker exploit CVE-2018-3187?
An attacker with high privileges and network access via multiple protocols can easily exploit CVE-2018-3187.
Where can I find more information about CVE-2018-3187?
More information about CVE-2018-3187 can be found at the Oracle security advisory and various security websites.