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CVE-2019-4654: IBM QRadar 7.3.0 to 7.3.3 Patch 2 does not validate, or incorrectly validates, a certificate which could al...

IBM QRadar 7.3.0 to 7.3.3 Patch 2 does not validate, or incorrectly validates, a certificate which could allow an attacker to spoof a trusted entity by using a man-in-the-middle (MITM) attack. IBM X-ForceID: 170965.

LowCVSS 3.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

IBM QRadar versions 7.3.0 through 7.3.3 Patch 2 may mishandle certificate validation. In business terms, an attacker with the right network position could impersonate a trusted entity in a man-in-the-middle scenario. The rated severity is low, and the provided sources do not show active exploitation.

Executive priority

Treat as a low-priority but legitimate hygiene issue. It should be handled during QRadar maintenance or upgrade planning, with faster action if QRadar traffic crosses networks where MITM is realistic.

Technical view

CVE-2019-4654 is an IBM QRadar certificate validation flaw that could permit trusted-entity spoofing via MITM. The CVSS 3.0 score is 3.7 with network attack vector, high complexity, no privileges, no user interaction, and no direct confidentiality, integrity, or availability impact recorded in the supplied vector.

Likely exposure

Exposure is likely limited to organizations still running IBM QRadar 7.3.0 through 7.3.3 Patch 2. Risk depends on whether attackers can position themselves on relevant network paths used by QRadar or connected services.

Exploitation context

The source bundle marks CISA KEV as false and CVSS exploit maturity as unproven. The described attack requires a man-in-the-middle position and high attack complexity. No supplied source states that exploitation is active in the wild.

Researcher notes

Key constraints are certificate validation, MITM positioning, and trusted-entity spoofing. The supplied CVSS vector records no direct CIA impact and high attack complexity. Evidence is incomplete on exact fixed builds in the prompt, so rely on IBM guidance before closing remediation.

Mitigation direction

  • Review IBM advisory 6189723 and X-Force ID 170965 for vendor remediation guidance.
  • Inventory QRadar deployments and identify versions 7.3.0 through 7.3.3 Patch 2.
  • Apply IBM-recommended fixes or supported upgrades where affected versions are present.
  • Reduce MITM opportunity by protecting QRadar management and integration network paths.
  • Monitor for certificate anomalies or unexpected trusted-entity communication involving QRadar.

Validation and detection

  • Confirm installed QRadar versions and patch levels against IBM's affected-version statement.
  • Verify whether any QRadar instance remains at 7.3.0 through 7.3.3 Patch 2.
  • Document whether IBM-recommended remediation has been applied to each affected appliance.
  • Review network placement for QRadar traffic crossing untrusted or weakly controlled segments.
  • Check logs for unusual certificate, TLS, or trusted-entity communication failures.
Prepared
Confidence
high
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-2019-4654 mapping review

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Vulnerability profileCVE Program record
Severity
Low
CVSS
3.7 (3.0)
Known Exploited
No
Published

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

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
3.7CVSS 3.0LowCVSS:3.0/C:L/AC:H/PR:N/UI:N/AV:N/I:N/A:N/S:U/RC:C/RL:O/E:U2.21.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

3.7Low
CVSS 3.0 vector shape for CVE-2019-4654Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMQradar7.3.3.Patch2Listed
IBMQRadar7.3.0Listed
Weakness

CWE details

No CWE listed

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