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CVE Record

CVE-2019-4039: IBM WebSphere MQ 8.0.0.0 through 8.0.0.9 and 9.0.0.0 through 9.1.1 could allow a local attacker to cause a...

IBM WebSphere MQ 8.0.0.0 through 8.0.0.9 and 9.0.0.0 through 9.1.1 could allow a local attacker to cause a denial of service within the error log reporting system. IBM X-Force ID: 156163.

MediumCVSS 6.2Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2019-4039 is a medium-severity denial-of-service issue in IBM MQ, formerly WebSphere MQ. A local attacker could disrupt the error log reporting system, affecting operational visibility and availability rather than stealing data. Business urgency depends on whether untrusted users can access MQ hosts.

Executive priority

Treat this as a targeted operational resilience issue, not a broad remote breach scenario. Prioritize remediation where IBM MQ supports critical business workflows or runs on shared systems with local user access.

Technical view

The reported flaw affects IBM MQ/WebSphere MQ versions in the 8.0, 9.0, and 9.1 lines. The CVSS vector is local, low complexity, no user interaction, no privileges required, with high availability impact and no confidentiality or integrity impact. Public sources describe denial of service in error log reporting.

Likely exposure

Exposure is most likely on servers running affected IBM MQ versions where local shell, batch job, service account, or shared-host access exists. Internet exposure alone is not the main condition because the attack vector is local.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. Exploitation is described as local denial of service, so risk increases where many users or applications can execute locally on MQ infrastructure.

Researcher notes

The source bundle has version-scope ambiguity: the title says 8.0.0.0 through 8.0.0.9, while the affected list also includes 8.0.0.10 and 8.0.0.11. Validate exact scope against IBM’s advisory before final asset classification.

Mitigation direction

  • Identify IBM MQ and WebSphere MQ versions across servers.
  • Review IBM advisory ibm10870492 for fix pack or interim fix guidance.
  • Prioritize hosts with shared access, jump-host access, or broad service-account execution.
  • Restrict unnecessary local access to MQ servers.
  • Monitor MQ error logging and operational alerting for disruption symptoms.

Validation and detection

  • Compare installed MQ versions against the affected ranges in vendor and CVE records.
  • Confirm whether local untrusted users or jobs can execute on MQ hosts.
  • Verify remediation status against IBM advisory guidance, not assumed fixed versions.
  • Check availability monitoring covers MQ logging and queue manager health.
  • Document any version-range uncertainty before closing remediation.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2019-4039 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.2 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/I:N/S:U/UI:N/AV:L/A:H/C:N/AC:L/PR:N/E:U/RL:O/RC:C

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.2CVSS 3.0MediumCVSS:3.0/I:N/S:U/UI:N/AV:L/A:H/C:N/AC:L/PR:N/E:U/RL:O/RC:C2.53.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.2Medium
CVSS 3.0 vector shape for CVE-2019-4039Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/I:N/S:U/UI:N/AV:L/A:H/C:N/AC:L/PR:N/E:U/RL:O/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
IBMMQ9.0.0.1, 8.0.0.1, 8.0.0.2, 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6, 8.0.0.7, 9.0.0.2, 8.0.0.8, 8.0.0.9, 9.0.0.3, 8.0.0.0, 8.0.0.10, 9.0.0.0, 9.0.0.4, 9.0.0.5, 9.1.0.0, 9.1.0.1, 9.1.1, 8.0.0.11Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.