CVE-2018-2816: Oracle Corporation MySQL Server vulnerability |…

CVE-2018-2816: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer).

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.7.21 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).

UnknownCVSS not scoredNot KEV-listedUpdatedOct 3, 2024, 20:16 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw can let a highly privileged remote MySQL user crash or hang affected MySQL Server instances. It is an availability risk, not a data theft or tampering issue based on the provided sources. Business impact is service disruption where MySQL 5.7.21 or earlier remains deployed. Exposure is most likely in legacy MySQL 5.7 deployments at version 5.7.21 or earlier, especially where privileged database accounts can connect over network-accessible MySQL protocols. Treat this as a legacy database availability risk. Prioritize remediation where affected MySQL supports business-critical services, internet-adjacent applications, or environments with broad privileged database access. Mitigation focus: Apply relevant Oracle, Ubuntu, Red Hat, or NetApp vendor updates for this CVE.; Upgrade MySQL Server versions identified as 5.7.21 or prior per vendor guidance.; Restrict MySQL network exposure to trusted application and administration hosts..

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.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 19, 2018, 02:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://security.netapp.com/advisory/ntap-20180419-0002/CVE reference · x_refsource_CONFIRM
RHSA-2018:3655CVE reference · vendor-advisory, x_refsource_REDHAT
USN-3629-1CVE reference · vendor-advisory, x_refsource_UBUNTU
USN-3629-3CVE reference · vendor-advisory, x_refsource_UBUNTU

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

Oracle CorporationMySQL Server5.7.21 and priorListed

Weakness

CWE details

No CWE listed

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