CVE-2022-21284Network attack vector

Code execution via Data Node job buffer overflow

Published Jan 19, 2022 · Updated Sep 24, 2024

Buffer overflow in affected Oracle MySQL Cluster releases allows attackers to execute code through crafted Data Node jobs. Data Node job processing copies user-supplied data into a buffer without validating its length, enabling code execution as the service account. Oracle rates exploitation as adjacent-network, high-privilege, and user-assisted, while ZDI reports that authentication is not required.

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

Buffer overflow in affected Oracle MySQL Cluster releases allows attackers to execute code through crafted Data Node jobs. Data Node job processing copies user-supplied data into a buffer without validating its length, enabling code execution as the service account. Oracle rates exploitation as adjacent-network, high-privilege, and user-assisted, while ZDI reports that authentication is not required.

The record

CVE
CVE-2022-21284
Published
Jan 19, 2022
Updated
Sep 24, 2024
Vendor
Oracle Corporation
Product
MySQL Cluster
Classifications
T1210
Attack vector
network
Privileges
unauthenticated

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 vectornetwork
Required privilegesunauthenticated

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

6.3OracleCVSS: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.

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)
Vectornetwork
Privilegesunauthenticated
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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