CVE-2019-2774: Medium severity Oracle MySQL vulnerability
Last updated 18 August 2025
Other sources
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.7.26 and prior and 8.0.16 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/cpujul2019-5072835.html
— Red Hat
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.7.26 and prior and 8.0.16 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-2019-2774?
CVE-2019-2774 is considered an easily exploitable vulnerability that allows high privileged attackers to gain unauthorized access.
How do I fix CVE-2019-2774?
To remediate CVE-2019-2774, upgrade MySQL to version 5.7.27 or higher, or to version 8.0.17 or higher.
Which versions of MySQL are affected by CVE-2019-2774?
CVE-2019-2774 affects MySQL versions 5.7.26 and earlier and 8.0.16 and earlier.
What types of systems are vulnerable to CVE-2019-2774?
CVE-2019-2774 can impact Oracle MySQL Server installations across various platforms, including Debian, Red Hat, and Ubuntu.
What is the attack vector for CVE-2019-2774?
The attack vector for CVE-2019-2774 requires network access, allowing attackers with high privileges to exploit the vulnerability remotely.