CVE-2022-22423

HSM service interruption via malformed local requests

Published Sep 23, 2022 · Updated May 22, 2025

Improper input validation in IBM CCA for MTM 4767 5.0.0 through 5.7.11 allows local users to interrupt HSM service. The HSM request-processing path insufficiently validates specially crafted requests and places an affected 4767 into a check-stop condition. An HSM user with local low-level privileges can trigger the condition, which halts HSM availability until manual recovery.

CVSS severity6.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in IBM CCA for MTM 4767 5.0.0 through 5.7.11 allows local users to interrupt HSM service. The HSM request-processing path insufficiently validates specially crafted requests and places an affected 4767 into a check-stop condition. An HSM user with local low-level privileges can trigger the condition, which halts HSM availability until manual recovery.

The record

CVE
CVE-2022-22423
Published
Sep 23, 2022
Updated
May 22, 2025
Vendor
IBM
Product
IBM Common Cryptographic Architecture (CCA) for MTM 4767
Classifications
CWE-20, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2022CVE publishedPublication date reported by the CVE source.
  2. May 22, 2025Record 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=5.0
  2. Affected versionversion=5.1
  3. Affected versionversion=5.2
  4. Affected versionversion=5.3
  5. Affected versionversion=5.4
  6. Affected versionversion=5.5
  7. Affected versionversion=5.6
  8. Affected versionversion=5.7
  9. Affected versionversion=5.7.11
  10. Affected versionversion=7.0
  11. Affected versionversion=7.1
  12. Affected versionversion=7.2
  13. Affected versionversion=7.3
  14. Affected versionversion=7.3.43

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

IBM · IBM Common Cryptographic Architecture (CCA) for MTM 4767version=5.0; version=5.1; version=5.2; version=5.3; version=5.4; version=5.5; version=5.6; version=5.7; version=5.7.11; version=7.0; version=7.1; version=7.2; version=7.3; version=7.3.43

Published CVSS scores

5.7IBMCVSS:3.0/S:C/I:N/AC:L/UI:N/PR:L/C:N/AV:L/A:H/RC:C/RL:O/E:U
6.5IBMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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.

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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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Application or System Exploitation

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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