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CVE Record

CVE-2020-4662: IBM Event Streams 10.0.0 could allow an authenticated user to perform tasks to a schema due to improper aut...

IBM Event Streams 10.0.0 could allow an authenticated user to perform tasks to a schema due to improper authentication validation. IBM X-Force ID: 186233.

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Event Streams 10.0.0 has an authorization weakness where a logged-in user may be able to perform schema-related tasks they should not be allowed to perform. The main business risk is unauthorized changes that affect data integrity or service behavior, not data theft.

Executive priority

Treat as a moderate-priority integrity issue. Remediate during the normal vulnerability cycle, or sooner for shared, multi-user, or business-critical streaming environments.

Technical view

CVE-2020-4662 is an improper authentication validation issue in IBM Event Streams 10.0.0. The CVSS 3.0 score is 6.5 with low privileges required, network attack vector, no user interaction, no confidentiality impact, and high integrity impact. IBM tracks it as X-Force ID 186233.

Likely exposure

Exposure appears limited to IBM Event Streams version 10.0.0. Risk is higher where authenticated non-administrative users can access schema-management functions or where schema integrity is operationally important.

Exploitation context

The source bundle does not show CISA KEV listing or other evidence of active exploitation. The vulnerability requires an authenticated user and appears focused on unauthorized schema tasks rather than unauthenticated compromise.

Researcher notes

Available evidence is sparse. The bundle names improper authentication validation affecting schema tasks, but provides no CWE, exploit details, or concrete fix text. Focus validation on authorization boundaries around schema operations in IBM Event Streams 10.0.0.

Mitigation direction

  • Identify any IBM Event Streams 10.0.0 deployments.
  • Review IBM advisory guidance for the supported fix or upgrade path.
  • Restrict schema-management access to trusted administrative users.
  • Apply least-privilege controls for authenticated Event Streams users.
  • Monitor schema changes for unexpected or unauthorized activity.

Validation and detection

  • Confirm deployed IBM Event Streams versions across environments.
  • Check whether any deployment is exactly version 10.0.0.
  • Review audit logs for unexpected schema-management activity.
  • Verify user roles cannot perform unauthorized schema tasks.
  • Confirm remediation status against IBM advisory documentation.
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-2020-4662 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/A:N/C:N/UI:N/I:H/PR:L/AC:L/S:U/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
6.5CVSS 3.0MediumCVSS:3.0/AV:N/A:N/C:N/UI:N/I:H/PR:L/AC:L/S:U/RC:C/E:U/RL:O2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.5Medium
CVSS 3.0 vector shape for CVE-2020-4662Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/A:N/C:N/UI:N/I:H/PR:L/AC:L/S:U/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
IBMEvent Streams10.0.0Listed
Weakness

CWE details

No CWE listed

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