CVE-2018-3123: Oracle MySQL

Medium severity, CVSS 5.9. EPSS: 2.1% chance of exploitation in the next 30 days.

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: libmysqld). Supported versions that are affected are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 and prior. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Server accessible data. CVSS 3.0 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

Affected products

• Oracle MySQL: from 5.6.0, up to and including 5.6.42; from 5.7.0, up to and including 5.7.24; from 8.0.0, up to and including 8.0.13

Published 2019-04-23. Last modified 2026-06-17.