CVE-2022-21337

Cluster takeover by adjacent high-privilege attackers

Published Jan 19, 2022 · Updated Sep 24, 2024

An unspecified flaw in affected Oracle MySQL Cluster releases allows attackers to take over the cluster from an adjacent network. The affected lines are 7.4.34 and earlier, 7.5.24 and earlier, 7.6.20 and earlier, and 8.0.27 and earlier; Oracle identifies only Cluster: General and has not published the concrete locus or wrong operation. Exploitation requires high privileges, access to the physical communication segment, and interaction by another person, with full cluster takeover as the reported consequence.

CVSS severity6.3
Medium
EPSS probability2.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An unspecified flaw in affected Oracle MySQL Cluster releases allows attackers to take over the cluster from an adjacent network. The affected lines are 7.4.34 and earlier, 7.5.24 and earlier, 7.6.20 and earlier, and 8.0.27 and earlier; Oracle identifies only Cluster: General and has not published the concrete locus or wrong operation. Exploitation requires high privileges, access to the physical communication segment, and interaction by another person, with full cluster takeover as the reported consequence.

The record

CVE
CVE-2022-21337
Published
Jan 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
MySQL Cluster
Classifications
Unavailable
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Jan 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 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=7.4.34 and prior
  2. Affected versionversion=7.5.24 and prior
  3. Affected versionversion=7.6.20 and prior
  4. Affected versionversion=8.0.27 and prior

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Clusterversion=7.4.34 and prior; version=7.5.24 and prior; version=7.6.20 and prior; version=8.0.27 and prior

Published CVSS scores

6.3Oracle CorporationCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:H/I:H/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.

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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)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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