CVE-2024-27256Network attack vector

Sensitive-information decryption via weak cryptographic algorithms

Published Jan 27, 2025 · Updated Feb 18, 2025

Weak cryptography in affected IBM MQ Operator releases allows remote attackers to decrypt highly sensitive information over a network. IBM identifies the flaw in MQ Container cryptography used by Operator and queue-manager images but does not disclose the algorithm, protocol, key handling, or code locus that is weaker than expected. Exploitation requires network access and conditions IBM rates as high complexity; the reported consequence is confidentiality loss only.

CVSS severity5.9
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak cryptography in affected IBM MQ Operator releases allows remote attackers to decrypt highly sensitive information over a network. IBM identifies the flaw in MQ Container cryptography used by Operator and queue-manager images but does not disclose the algorithm, protocol, key handling, or code locus that is weaker than expected. Exploitation requires network access and conditions IBM rates as high complexity; the reported consequence is confidentiality loss only.

The record

CVE
CVE-2024-27256
Published
Jan 27, 2025
Updated
Feb 18, 2025
Vendor
IBM
Product
IBM MQ Operator
Classifications
CWE-327
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 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=2.0.0 LTS <=2.0.22 LTS
  2. Affected versionversion=2.2.0 <=2.2.2
  3. Affected versionversion=2.3.0 <=2.3.3
  4. Affected versionversion=2.4.0 <=2.4.8
  5. Affected versionversion=3.0.0 CD, 3.0.1 CD
  6. Affected versionversion=3.1.0 CD <=3.1.3 CD

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM MQ Operatorversion=2.0.0 LTS <=2.0.22 LTS; version=2.2.0 <=2.2.2; version=2.3.0 <=2.3.3; version=2.4.0 <=2.4.8; version=3.0.0 CD, 3.0.1 CD; version=3.1.0 CD <=3.1.3 CD

Published CVSS scores

5.9IBM CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm

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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