CVE-2018-2647: High severity ORACLE MySQL vulnerability
Last updated 18 August 2025
Other sources
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Replication). Supported versions that are affected are 5.6.38 and prior and 5.7.20 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/cpujan2018-3236628.html
— Red Hat
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Replication). Supported versions that are affected are 5.6.38 and prior and 5.7.20 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-2018-2647?
CVE-2018-2647 is considered a high severity vulnerability due to its ease of exploitation by high-privileged attackers with network access.
What versions of MySQL are affected by CVE-2018-2647?
Affected versions include MySQL Server 5.6.38 and earlier, as well as 5.7.20 and earlier.
How do I fix CVE-2018-2647?
To fix CVE-2018-2647, upgrade to MySQL versions 5.6.39 or 5.7.21 or later.
What components of MySQL are impacted by CVE-2018-2647?
CVE-2018-2647 specifically impacts the MySQL Server component, particularly in the replication subcomponent.
Can CVE-2018-2647 be exploited remotely?
Yes, CVE-2018-2647 is easily exploitable by an attacker with network access.