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CVE Record

CVE-2019-4340: IBM Security Guardium Big Data Intelligence 4.0 (SonarG) is vulnerable to an XML External Entity Injection...

IBM Security Guardium Big Data Intelligence 4.0 (SonarG) is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 161419.

HighCVSS 7.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

IBM Security Guardium Big Data Intelligence 4.0 can mishandle XML input in a way that may let a remote low-privileged attacker read sensitive data or exhaust memory. The issue is serious for organizations still running this specific SonarG version, especially where XML-processing paths are reachable over the network.

Executive priority

Prioritize remediation if Guardium Big Data Intelligence 4.0 is still deployed. The main business concern is sensitive information exposure from a security platform, with secondary availability risk from memory exhaustion.

Technical view

CVE-2019-4340 is an XML External Entity injection flaw in IBM Security Guardium Big Data Intelligence 4.0. The CVSS 3.0 vector is network-accessible, low complexity, no user interaction, low privileges required, high confidentiality impact, and low availability impact. The sources do not identify integrity impact.

Likely exposure

Exposure is limited to IBM Security Guardium Big Data Intelligence 4.0, also referenced as SonarG. Risk depends on whether that version is deployed and whether XML data processing is reachable by remote authenticated users or integrated systems.

Exploitation context

The CVE is not listed as CISA KEV in the provided bundle. IBM’s vector marks exploit maturity as unproven, and the provided sources do not claim active exploitation or public weaponization.

Researcher notes

The provided record has enough detail to classify exposure and impact but not enough to name fixed builds or a precise vulnerable endpoint. Avoid exploit testing unless authorized; validate by version, configuration review, and IBM advisory status.

Mitigation direction

  • Review IBM advisory guidance for CVE-2019-4340 and apply the vendor-supported fix or workaround.
  • Confirm whether any IBM Security Guardium Big Data Intelligence 4.0 instances remain in service.
  • Restrict access to XML-processing interfaces to trusted users, networks, and integrated systems.
  • Monitor affected systems for abnormal memory consumption and unexpected sensitive file access indicators.

Validation and detection

  • Inventory IBM Security Guardium Big Data Intelligence deployments and confirm exact product version.
  • Check whether each instance is version 4.0 and covered by IBM advisory 10960856.
  • Verify the vendor fix or documented workaround is applied where applicable.
  • Review authentication and network controls around interfaces that process XML data.
  • Assess logs for unusual XML parsing failures or memory exhaustion events.
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-2019-4340 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.1 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/S:U/C:H/AC:L/AV:N/UI:N/PR:L/I:N/A:L/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
7.1CVSS 3.0HighCVSS:3.0/S:U/C:H/AC:L/AV:N/UI:N/PR:L/I:N/A:L/E:U/RL:O/RC:C2.84.2Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.1High
CVSS 3.0 vector shape for CVE-2019-4340Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/S:U/C:H/AC:L/AV:N/UI:N/PR:L/I:N/A:L/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
IBMSecurity Guardium Big Data Intelligence4.0Listed
Weakness

CWE details

No CWE listed

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