CVE-2020-2933Network attack vector

Authenticated partial denial of service

Published Apr 15, 2020 · Updated Sep 27, 2024

A denial-of-service vulnerability in Oracle Corporation MySQL Connectors 5.1.48 and earlier allows remote authenticated users to cause partial service interruption via MySQL Protocol. The specific Connector/J operation that mishandles untrusted protocol input has not been published in Oracle's advisory or the CVE record. Exploitation requires a highly privileged authenticated network user; the documented consequence is limited to partial availability loss, with no confidentiality or integrity impact.

CVSS severity2.2
Low
EPSS probability1.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A denial-of-service vulnerability in Oracle Corporation MySQL Connectors 5.1.48 and earlier allows remote authenticated users to cause partial service interruption via MySQL Protocol. The specific Connector/J operation that mishandles untrusted protocol input has not been published in Oracle's advisory or the CVE record. Exploitation requires a highly privileged authenticated network user; the documented consequence is limited to partial availability loss, with no confidentiality or integrity impact.

The record

CVE
CVE-2020-2933
Published
Apr 15, 2020
Updated
Sep 27, 2024
Vendor
Oracle Corporation
Product
MySQL Connectors
Classifications
T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.1.48 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Connectorsversion=5.1.48 and prior

Published CVSS scores

2.2Oracle CorporationCVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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