CVE-2022-40237Network attack vector

Service interruption via corrupted CCDT records

Published Feb 27, 2023 · Updated Aug 3, 2024

Denial of service in IBM MQ for HPE NonStop 8.1.0 allows remote attackers to interrupt service via a corrupted CCDT file. MQ channel processing fails to validate invalid or corrupted CCDT records before applying channel synchronization logic. Exploitation requires user interaction to introduce the CCDT data, and IBM reports availability impact without data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in IBM MQ for HPE NonStop 8.1.0 allows remote attackers to interrupt service via a corrupted CCDT file. MQ channel processing fails to validate invalid or corrupted CCDT records before applying channel synchronization logic. Exploitation requires user interaction to introduce the CCDT data, and IBM reports availability impact without data disclosure or modification.

The record

CVE
CVE-2022-40237
Published
Feb 27, 2023
Updated
Aug 3, 2024
Vendor
IBM
Product
IBM MQ for HPE NonStop
Classifications
CWE-20, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=8.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM MQ for HPE NonStopversion=8.1.0

Published CVSS scores

6.5IBM CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

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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