CVE-2018-2775: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer).

Security readout for executives and security teams

CVE-2018-2775 is a MySQL Server availability flaw in the Optimizer component. A low-privileged attacker who can reach MySQL over the network could make the server hang or repeatedly crash. The business risk is service outage, not data theft or data modification based on the supplied record. Exposure is most likely where MySQL Server 5.7.21 or earlier remains deployed and reachable by users or applications with low-privileged database accounts. Downstream packages or appliances should be checked against Oracle, Red Hat, Ubuntu, and NetApp advisories. Treat this as a service resilience issue. Prioritize internet-facing, shared, or business-critical MySQL deployments first, especially where many low-privileged users or applications can connect. It is not described as a confidentiality breach in the supplied sources. Mitigation focus: Apply Oracle April 2018 CPU guidance or equivalent downstream vendor updates.; Upgrade affected MySQL Server 5.7.21 and earlier deployments per vendor guidance.; Check Red Hat, Ubuntu, and NetApp advisories for packaged or embedded MySQL exposure..

Prepared

Jun 7, 2026, 13:40 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.