CVE-2022-21483

Code execution via unchecked data-node array index

Published Apr 19, 2022 · Updated Sep 24, 2024

An out-of-bounds read in affected MySQL Cluster releases allows remote attackers to execute code as the data-node service account. The data node processes user-supplied job data without validating an array index, which reads past the end of the array. Oracle identifies 7.4.35 and earlier, 7.5.25 and earlier, 7.6.21 and earlier, and 8.0.28 and earlier as affected, and rates exploitation as requiring high privileges, adjacent-segment access, and interaction by another person; success permits cluster takeover.

CVSS severity6.3
Medium
EPSS probability3.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in affected MySQL Cluster releases allows remote attackers to execute code as the data-node service account. The data node processes user-supplied job data without validating an array index, which reads past the end of the array. Oracle identifies 7.4.35 and earlier, 7.5.25 and earlier, 7.6.21 and earlier, and 8.0.28 and earlier as affected, and rates exploitation as requiring high privileges, adjacent-segment access, and interaction by another person; success permits cluster takeover.

The record

CVE
CVE-2022-21483
Published
Apr 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
MySQL Cluster
Classifications
T1210
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Apr 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=7.4.35 and prior
  2. Affected versionversion=7.5.25 and prior
  3. Affected versionversion=7.6.21 and prior
  4. Affected versionversion=8.0.28 and prior

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

Oracle Corporation · MySQL Clusterversion=7.4.35 and prior; version=7.5.25 and prior; version=7.6.21 and prior; version=8.0.28 and prior

Published CVSS scores

9.8Trend Micro Zero Day InitiativeCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.3OracleCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
4.0NIST NVDAV:A/AC:H/Au:S/C:P/I:P/A:P

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

T1210Exploitation of Remote Services

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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