CVE-2020-2768Network attack vector

Authenticated cluster disruption and data modification

Published Apr 15, 2020 · Updated Sep 30, 2024

Denial of service and data modification in Oracle MySQL Cluster affected releases allow remote authenticated users to disrupt clusters. Oracle identifies the locus only as Cluster: General and has not published the wrong operation or input that triggers the flaw. Exploitation requires low privileges, network access through one of multiple protocols, and another person’s interaction; it can hang or repeatedly crash the cluster and update, insert, or delete some accessible data.

CVSS severity6.3
Medium
EPSS probability1.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service and data modification in Oracle MySQL Cluster affected releases allow remote authenticated users to disrupt clusters. Oracle identifies the locus only as Cluster: General and has not published the wrong operation or input that triggers the flaw. Exploitation requires low privileges, network access through one of multiple protocols, and another person’s interaction; it can hang or repeatedly crash the cluster and update, insert, or delete some accessible data.

The record

CVE
CVE-2020-2768
Published
Apr 15, 2020
Updated
Sep 30, 2024
Vendor
Oracle Corporation
Product
MySQL Cluster
Classifications
T1499, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 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=7.3.28 and prior
  2. Affected versionversion=7.4.27 and prior
  3. Affected versionversion=7.5.17 and prior
  4. Affected versionversion=7.6.13 and prior
  5. Affected versionversion=8.0.19 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · MySQL Clusterversion=7.3.28 and prior; version=7.4.27 and prior; version=7.5.17 and prior; version=7.6.13 and prior; version=8.0.19 and prior

Published CVSS scores

4.9NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:P
6.3OracleCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
6.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service
T1565.001Stored Data Manipulation

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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