CVE-2018-2777: Oracle Corporation MySQL Server vulnerability |…

CVE-2018-2777: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: InnoDB).

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: InnoDB). 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, 20:20 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2018-2777 is a denial-of-service flaw in Oracle MySQL Server's InnoDB component. An already highly privileged attacker who can reach MySQL over the network could make the server hang or crash repeatedly. The business risk is service interruption, not data theft or modification based on the supplied evidence. Exposure is most likely where MySQL Server 5.7.21 or earlier remains deployed and accessible to highly privileged database users over network protocols. Internet exposure increases operational concern, but privileges are still required. Treat as a routine but important availability fix for systems that still run older MySQL. Prioritize business-critical databases and externally reachable services first. Mitigation focus: Patch MySQL using Oracle CPU or applicable Linux distribution advisories.; Retire or upgrade MySQL Server 5.7.21 and earlier where present.; Restrict MySQL network access to trusted administrative and application paths..

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

7Source 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
RHSA-2019:1258CVE reference · vendor-advisory, x_refsource_REDHAT
GLSA-201908-24CVE reference · vendor-advisory, x_refsource_GENTOO

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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