CVE-2019-2974: Medium severity Oracle MySQL vulnerability
Last updated 18 August 2025
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 5.6.45 and prior, 5.7.27 and prior and 8.0.17 and prior. Easily exploitable vulnerability allows low 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/cpuoct2019-5072832.html
— Red Hat
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 5.6.45 and prior, 5.7.27 and prior and 8.0.17 and prior. Easily exploitable vulnerability allows low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/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-2019-2974?
CVE-2019-2974 is classified as an easily exploitable vulnerability that can be exploited by low privileged attackers with network access.
How do I fix CVE-2019-2974?
To fix CVE-2019-2974, update MySQL to version 5.6.46 or later, version 5.7.28 or later, or version 8.0.18 or later.
What versions of MySQL are affected by CVE-2019-2974?
Affected versions of MySQL include 5.6.45 and prior, 5.7.27 and prior, and 8.0.17 and prior.
Is MariaDB affected by CVE-2019-2974?
Yes, MariaDB versions up to 5.5.66, 10.1.42, 10.2.28, 10.3.19, and 10.4.9 are also affected by CVE-2019-2974.
How can an attacker exploit CVE-2019-2974?
An attacker can exploit CVE-2019-2974 through network access by leveraging vulnerabilities in the MySQL Server: Optimizer component.