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CVE Record

CVE-2020-2762: Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB).

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.19 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).

MediumCVSS 4.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-2762 is a denial-of-service flaw in Oracle MySQL Server's InnoDB component. A highly privileged attacker who can reach MySQL over the network may cause the server to hang or crash repeatedly, disrupting database availability. The sources do not show active exploitation.

Executive priority

Treat as a scheduled availability-risk remediation, not an emergency internet-wide compromise. Prioritize business-critical MySQL systems and environments with broad privileged database access.

Technical view

Oracle describes an easily exploitable InnoDB vulnerability affecting MySQL Server 8.0.19 and prior. The CVSS 3.0 vector is AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H, meaning network-reachable exploitation requires high privileges and impacts availability only.

Likely exposure

Exposure is most relevant for MySQL Server 8.0.19 and prior where privileged database users can connect over network-accessible MySQL protocols. Downstream Linux packages and NetApp products may also be affected according to the cited advisories.

Exploitation context

The CVE is not listed as KEV, and the provided sources do not cite active exploitation or public weaponization. Risk depends heavily on whether an attacker already has high-privileged MySQL access and network reachability.

Researcher notes

The public record is sparse: it identifies InnoDB, affected MySQL versions, privilege level, and availability impact, but not root cause details or fixed version specifics in the supplied bundle. Avoid assuming confidentiality or integrity impact.

Mitigation direction

  • Apply Oracle's April 2020 Critical Patch Update guidance for MySQL Server.
  • Use applicable Ubuntu, Fedora, Gentoo, or NetApp vendor updates where deployed.
  • Inventory and upgrade MySQL Server instances at 8.0.19 or prior.
  • Restrict network access to MySQL from untrusted systems.
  • Review and reduce high-privileged MySQL accounts where possible.

Validation and detection

  • Confirm MySQL Server versions across production, staging, and embedded deployments.
  • Check package manager advisory status against Ubuntu, Fedora, or Gentoo notices.
  • Review NetApp advisory applicability for storage or appliance environments.
  • Validate MySQL network exposure and privileged account access paths.
  • Confirm update completion through version reporting and change records.
Prepared
Confidence
high
Sources
9

Public sources used

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2020-2762 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.9 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

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.

1CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.9CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H1.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.9Medium
CVSS 3.0 vector shape for CVE-2020-2762Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Oracle CorporationMySQL Server8.0.19 and priorListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.