CVE-2022-21324

Data disclosure via unchecked Data Node array index

Published Jan 19, 2022 · Updated Sep 24, 2024

Out-of-bounds read in affected Oracle MySQL Cluster releases allows attackers to disclose data through crafted Data Node jobs. The Data Node job processor fails to validate a user-supplied array index before reading it, allowing access past the array boundary. Oracle requires adjacent access, high privileges, and another person's interaction; affected branches are 7.4.34 and earlier, 7.5.24 and earlier, 7.6.20 and earlier, and 8.0.27 and earlier, with partial data disclosure and service interruption.

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 affected Oracle MySQL Cluster releases allows attackers to disclose data through crafted Data Node jobs. The Data Node job processor fails to validate a user-supplied array index before reading it, allowing access past the array boundary. Oracle requires adjacent access, high privileges, and another person's interaction; affected branches are 7.4.34 and earlier, 7.5.24 and earlier, 7.6.20 and earlier, and 8.0.27 and earlier, with partial data disclosure and service interruption.

The record

CVE
CVE-2022-21324
Published
Jan 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
MySQL Cluster
Classifications
T1210
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

2.9NIST NVDAV:A/AC:H/Au:S/C:P/I:N/A:P
2.9OracleCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:L
6.5Trend Micro Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:N/UI:N/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 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

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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