CVE-2022-21286

Cluster takeover via Data Node array overwrite

Published Jan 19, 2022 · Updated Sep 24, 2024

Memory corruption in MySQL Cluster affected releases allows attackers to execute code through malformed Data Node job data. The Data Node job processor fails to validate a user-supplied array index, permitting a write past the array boundary in the service account context. Oracle identifies 7.4.34 and earlier, 7.5.24 and earlier, 7.6.20 and earlier, and 8.0.27 and earlier as affected and rates exploitation as adjacent, high-privilege, high-complexity, and user-assisted; ZDI reports unauthenticated remote reachability.

CVSS severity6.3
Medium
EPSS probability2.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in MySQL Cluster affected releases allows attackers to execute code through malformed Data Node job data. The Data Node job processor fails to validate a user-supplied array index, permitting a write past the array boundary in the service account context. Oracle identifies 7.4.34 and earlier, 7.5.24 and earlier, 7.6.20 and earlier, and 8.0.27 and earlier as affected and rates exploitation as adjacent, high-privilege, high-complexity, and user-assisted; ZDI reports unauthenticated remote reachability.

The record

CVE
CVE-2022-21286
Published
Jan 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
MySQL Cluster
Classifications
T1210
Attack vector
Unavailable
Privileges
Unavailable

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 vectorUnavailable in this record.
Required privilegesUnavailable in this record.

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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1210Exploitation of Remote Services

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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