CVE-2018-3063: Medium severity Oracle MySQL vulnerability
Last updated 25 August 2025
Other sources
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Security: Privileges). Supported versions that are affected are 5.5.60 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.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
— Red Hat
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Security: Privileges). Supported versions that are affected are 5.5.60 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. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2018-3063?
CVE-2018-3063 is classified as a high severity vulnerability that allows a high privileged attacker to exploit the MySQL Server.
How do I fix CVE-2018-3063?
To fix CVE-2018-3063, upgrade MySQL to version 5.5.61 or later, or apply relevant updates for affected MariaDB versions.
Which versions of MySQL are affected by CVE-2018-3063?
CVE-2018-3063 affects MySQL Server versions 5.5.60 and earlier.
Can CVE-2018-3063 be exploited remotely?
Yes, CVE-2018-3063 can be exploited remotely by attackers with network access.
What components are affected by CVE-2018-3063?
CVE-2018-3063 impacts the MySQL Server component related to security privileges.