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CVE Record

CVE-2018-1845: IBM InfoSphere Information Server 11.3, 11.5, and 11.7 is vulnerable to a XML External Entity Injection (XX...

IBM InfoSphere Information Server 11.3, 11.5, and 11.7 is vulnerable to a 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: 150905.

HighCVSS 7.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

IBM InfoSphere Information Server versions 11.3, 11.5, and 11.7 can mishandle XML input. An authenticated remote attacker could use this to read sensitive information or consume memory resources. Treat affected internet-connected or broadly accessible deployments as business-relevant risk.

Executive priority

Prioritize remediation for production data-integration environments because the likely business impact is sensitive data exposure, with some availability risk. Urgency is high but not emergency-level without evidence of active exploitation.

Technical view

CVE-2018-1845 is an XML External Entity injection issue in IBM InfoSphere Information Server XML processing. CVSS 3.0 is 7.1 with network attack vector, low complexity, low privileges, no user interaction, high confidentiality impact, and low availability impact.

Likely exposure

Exposure is limited to IBM InfoSphere Information Server 11.3, 11.5, and 11.7 where untrusted XML can be processed by reachable authenticated users or integrations.

Exploitation context

The source bundle does not show KEV listing or active exploitation. IBM X-Force ID 150905 tracks the issue. CVSS exploit maturity is listed as unproven in the provided vector.

Researcher notes

Evidence is incomplete on exact endpoints, required role, and fix package details. The CVSS vector supports authenticated remote attack, low complexity, and confidentiality-heavy impact. No CWE is listed in the bundle.

Mitigation direction

  • Identify all IBM InfoSphere Information Server 11.3, 11.5, and 11.7 deployments.
  • Review IBM advisory 10738917 for the official fix or vendor-directed remediation.
  • Restrict access to XML-processing surfaces to trusted users and systems.
  • Monitor memory pressure and unusual XML processing failures until remediated.

Validation and detection

  • Confirm product version and deployment inventory against affected versions.
  • Check IBM X-Force ID 150905 and IBM advisory for applicability.
  • Review whether XML inputs are accepted from authenticated users or integrations.
  • Inspect logs for unusual XML parsing errors or resource consumption patterns.
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-2018-1845 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/AV:N/C:H/AC:L/S:U/I:N/UI:N/PR:L/A:L/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
7.1CVSS 3.0HighCVSS:3.0/AV:N/C:H/AC:L/S:U/I:N/UI:N/PR:L/A:L/RC:C/RL:O/E:U2.84.2Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.1High
CVSS 3.0 vector shape for CVE-2018-1845Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/C:H/AC:L/S:U/I:N/UI:N/PR:L/A:L/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
IBMInfoSphere Information Server11.3, 11.5, 11.7Listed
Weakness

CWE details

No CWE listed

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