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CVE Record

CVE-2019-4609: IBM API Connect 2018.4.1.7 uses weaker than expected cryptographic algorithms that could allow an attacker...

IBM API Connect 2018.4.1.7 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 168510.

MediumCVSS 5.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM API Connect 2018.4.1.7 used weaker cryptography than expected. If an attacker can overcome high-complexity conditions, they may decrypt highly sensitive information. The provided sources do not show active exploitation.

Executive priority

Address during the next vulnerability remediation cycle, sooner if API Connect handles regulated or highly sensitive data. The main business risk is confidentiality exposure, not service outage.

Technical view

CVE-2019-4609 affects IBM API Connect 2018.4.1.7. The issue is information disclosure through weak cryptographic algorithms. CVSS 3.0 score is 5.9: network attack vector, no privileges or user interaction, high attack complexity, high confidentiality impact, no integrity or availability impact.

Likely exposure

Exposure appears limited to IBM API Connect 2018.4.1.7 deployments. Organizations using API Connect for sensitive API management workflows should treat this as confidentiality risk, especially where encrypted sensitive information is present.

Exploitation context

The CVE is not listed as KEV, and the provided CVSS temporal metric marks exploit code maturity as unproven. No cited source in the bundle states active exploitation or public weaponization.

Researcher notes

Evidence is narrow: affected version, weak cryptography, and confidentiality impact are stated, but the bundle does not describe the algorithm, affected component, attack preconditions, or specific fix text. Avoid broader product claims without IBM advisory details.

Mitigation direction

  • Identify any IBM API Connect 2018.4.1.7 deployments.
  • Review IBM’s advisory and X-Force entry for official remediation guidance.
  • Apply IBM-supported fixes or upgrades if listed for your deployment.
  • Limit unnecessary network exposure to affected API Connect components.
  • Review handling of highly sensitive data until remediation is confirmed.

Validation and detection

  • Confirm installed IBM API Connect versions across all environments.
  • Check whether any deployment matches version 2018.4.1.7.
  • Compare deployment status against IBM’s advisory for CVE-2019-4609.
  • Document whether official remediation was applied or is pending.
  • Monitor vendor and vulnerability-management sources for updated guidance.
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-2019-4609 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
5.9 (3.0)
Known Exploited
No
Published

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

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
5.9CVSS 3.0MediumCVSS:3.0/S:U/C:H/AV:N/A:N/AC:H/UI:N/PR:N/I:N/RC:C/E:U/RL:O2.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.9Medium
CVSS 3.0 vector shape for CVE-2019-4609Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMAPI Connect2018.4.1.7Listed
Weakness

CWE details

No CWE listed

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