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CVE Record

CVE-2020-2934: Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J).

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.19 and prior and 5.1.48 and prior. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of MySQL Connectors accessible data as well as unauthorized read access to a subset of MySQL Connectors accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Connectors. CVSS 3.0 Base Score 5.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L).

MediumCVSS 5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-2934 affects Oracle MySQL Connector/J. An unauthenticated network attacker could, with high complexity and user interaction, read or modify some connector-accessible data and cause partial service disruption. The public source bundle does not show active exploitation.

Executive priority

Treat as a scheduled remediation item, not an emergency. Prioritize internet-facing or user-driven Java services that connect to MySQL and environments already covered by Oracle or Linux distribution advisories.

Technical view

The CVE describes MySQL Connectors Connector/J versions 8.0.19 and earlier and 5.1.48 and earlier. CVSS 3.0 is 5.0: network attack vector, high complexity, no privileges, user interaction required, with low confidentiality, integrity, and availability impact.

Likely exposure

Java applications or platforms using MySQL Connector/J are the primary exposure. Debian, Fedora, and Gentoo advisories reference mysql-connector-java updates. The bundle also lists WebLogic Server versions, but that conflicts with the CVE product text, so verify both dependency and platform inventory.

Exploitation context

Sources describe difficult exploitation requiring network access and human interaction. No provided source or KEV status indicates known active exploitation. Impact is limited but meaningful: subset data read/write and partial denial of service against connector-accessible data.

Researcher notes

Key uncertainty is product scope: the CVE text names MySQL Connector/J, while the bundle’s affected field lists WebLogic Server versions. Validate using Oracle advisories and local dependency evidence before expanding scope.

Mitigation direction

  • Apply Oracle CPU guidance for CVE-2020-2934 where applicable.
  • Update mysql-connector-java packages through Debian, Fedora, or Gentoo advisories.
  • Upgrade MySQL Connector/J beyond affected 8.0.19 and 5.1.48 lines.
  • Check vendor guidance for WebLogic exposure before treating it as affected.

Validation and detection

  • Inventory MySQL Connector/J versions in applications and dependency manifests.
  • Check OS packages for mysql-connector-java advisory-fixed builds.
  • Review WebLogic versions listed in the source bundle for bundled connector exposure.
  • Confirm no runtime image still contains affected Connector/J versions.
Prepared
Confidence
medium
Sources
6

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-2020-2934 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5 (3.0)
Known Exploited
No
Published

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

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
5CVSS 3.0MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L1.63.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5Medium
CVSS 3.0 vector shape for CVE-2020-2934Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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 CorporationWebLogic Server12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0Listed
Weakness

CWE details

No CWE listed

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