CVE-2021-38949

Credential disclosure via crash diagnostic logging

Published Nov 16, 2021 · Updated Sep 17, 2024

Cleartext credential exposure in IBM MQ Java/JMS clients 7.5, 8.0, 9.0 LTS, and 9.1 allows local users to read crash diagnostic logs. Crash-generated diagnostic files record client credentials without masking or encryption. Local access to those files is required, and exposure is limited to credential confidentiality; no data modification or service interruption is reported.

CVSS severity6.2
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential exposure in IBM MQ Java/JMS clients 7.5, 8.0, 9.0 LTS, and 9.1 allows local users to read crash diagnostic logs. Crash-generated diagnostic files record client credentials without masking or encryption. Local access to those files is required, and exposure is limited to credential confidentiality; no data modification or service interruption is reported.

The record

CVE
CVE-2021-38949
Published
Nov 16, 2021
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM MQ
Classifications
CWE-312, T1552.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 16, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=7.5.0
  2. Affected versionversion=8.0.0
  3. Affected versionversion=9.0.0
  4. Affected versionversion=9.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM MQversion=7.5.0; version=8.0.0; version=9.0.0; version=9.1.0

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.2IBM CorporationCVSS:3.0/AV:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1552.001Unsecured Credentials: Credentials In Files

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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