CVE-2022-21333

Data disclosure via unchecked Data Node array index

Published Jan 19, 2022 · Updated Sep 24, 2024

Out-of-bounds read in Oracle MySQL Cluster 8.0.27 and earlier allows attackers to disclose data-node memory and interrupt service. Data Node job processing fails to validate user-supplied array indexes before reading, allowing access beyond the array boundary. Oracle also lists 7.4.34 and earlier, 7.5.24 and earlier, and 7.6.20 and earlier; exploitation requires high privileges, adjacent-segment access, and another person's interaction.

CVSS severity2.9
Low
EPSS probability1.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Oracle MySQL Cluster 8.0.27 and earlier allows attackers to disclose data-node memory and interrupt service. Data Node job processing fails to validate user-supplied array indexes before reading, allowing access beyond the array boundary. Oracle also lists 7.4.34 and earlier, 7.5.24 and earlier, and 7.6.20 and earlier; exploitation requires high privileges, adjacent-segment access, and another person's interaction.

The record

CVE
CVE-2022-21333
Published
Jan 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
MySQL Cluster
Classifications
T1005
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

2.9Oracle CorporationCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

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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